Jan Ambjørn
Professor, emeritus
Theoretical high energy, astroparticle and gravitational physics
Blegdamsvej 17
2100 København Ø
- 2023
- Published
Is the present acceleration of the Universe caused by merging with other universes?
Ambjørn, Jan & Watabiki, Y., 12 Dec 2023, In: Journal of Cosmology and Astroparticle Physics. 2023, 12, 20 p., 011.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The large-scale structure of the universe from a modified Friedmann equation
Ambjørn, Jan & Watabiki, Y., 30 Apr 2023, In: Modern Physics Letters A. 38, 12n13, 14 p., 2350068.Research output: Contribution to journal › Journal article › Research › peer-review
- 2022
- Published
Topology induced first-order phase transitions in lattice quantum gravity
Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A. & Nemeth, D., 3 Apr 2022, In: Journal of High Energy Physics (Online). 2022, 04, 20 p., 103.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Easing the Hubble constant tension
Ambjørn, Jan & Watabiki, Y., 1 Mar 2022, In: Modern Physics Letters A. 37, 07, 2250041.Research output: Contribution to journal › Journal article › Research › peer-review
- 2021
- Published
Matter-Driven Change of Spacetime Topology
Ambjørn, Jan, Drogosz, Z., Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., 12 Oct 2021, In: Physical Review Letters. 127, 16, 5 p., 161301.Research output: Contribution to journal › Letter › Research › peer-review
- Published
Scalar fields in causal dynamical triangulations
Ambjørn, Jan, Drogosz, Z., Gizbert-Studnicki, J., Görlich, A., Jurkiewicz, J. & Nemeth, D., 16 Sep 2021, In: Classical and Quantum Gravity. 38, 60 p., 195030.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Cosmic voids and filaments from quantum gravity
Ambjørn, Jan, Drogosz, Z., Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., Aug 2021, In: European Physical Journal C. 81, 8, 5 p., 708.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The susceptibility exponent of Nambu-Goto strings
Ambjørn, Jan & Makeenko, Y., 21 Jun 2021, In: Modern Physics Letters A. 36, 19, 11 p., 2150136.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Wormholes in 2d Horava-Lifshitz quantum gravity
Ambjørn, Jan, Hiraga, Y., Ito, Y. & Sato, Y., 10 May 2021, In: Physics Letters B. 816, 5 p., 136205.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Properties of dynamical fractal geometries in the model of causal dynamical triangulations
Ambjørn, Jan, Drogosz, Z., Gorlich, A. & Jurkiewicz, J., 27 Apr 2021, In: Physical Review D. 103, 8, 17 p., 086022.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
CDT Quantum Toroidal Spacetimes: An Overview
Ambjørn, Jan, Drogosz, Z., Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., 26 Mar 2021, In: Universe. 7, 4, 26 p., 79.Research output: Contribution to journal › Review › Research › peer-review
- Published
Wormholes, a fluctuating cosmological constant and the Coleman mechanism
Ambjørn, Jan, Sato, Y. & Watabiki, Y., 2 Jan 2021, In: Physics Letters B. 815, 5 p., 136152.Research output: Contribution to journal › Journal article › Research › peer-review
- 2020
- Published
Renormalization in Quantum Theories of Geometry
Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Loll, R., 9 Jul 2020, In: Frontiers in Physics. 8, 12 p., 247.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Models of the universe based on Jordan algebras
Ambjørn, Jan & Watabiki, Y., 1 Jun 2020, In: Nuclear Physics B. 955, 54 p., 115044.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Towards elucidation of zero-temperature criticality of the Ising model on 2D dynamical triangulations
Ambjørn, Jan, Sato, Y. & Tanaka, T., 18 May 2020, In: Physical Review D. 101, 10, 12 p., 106019.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The higher-order phase transition in toroidal CDT
Ambjørn, Jan, Czelusta, G., Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., 7 May 2020, In: Journal of High Energy Physics. 2020, 5, 18 p., 030.Research output: Contribution to journal › Journal article › Research › peer-review
- 2019
- Published
Critical phenomena in causal dynamical triangulations
Ambjørn, Jan, Coumbe, D., Gizbert-Studnicki, J., Gorlich, A. & Jurkiewicz, J., 15 Oct 2019, In: Classical and Quantum Gravity. 36, 22, 40 p., 224001.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Towards an UV fixed point in CDT gravity
Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., 29 Jul 2019, In: Journal of High Energy Physics. 2019, 7, 18 p., 166.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Pseudo-Cartesian coordinates in a model of Causal Dynamical Triangulations
Ambjørn, Jan, Drogosz, Z., Gizbert-Studnicki, J., Gorlich, A. & Jurkiewicz, J., 30 Apr 2019, In: Nuclear Physics B. 943, 18 p., 114626.Research output: Contribution to journal › Journal article › Research › peer-review
- 2018
- Published
Spectral curves for hypergeometric Hurwitz numbers
Ambjørn, Jan & Chekhov, L. O., 23 Jul 2018, In: Journal of Geometry and Physics. 132, p. 382-392 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The phase structure of causal dynamical triangulations with toroidal spatial topology
Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., 21 Jun 2018, In: Journal of High Energy Physics. 2018, 6, 23 p., 111.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Perturbed generalized multicritical one-matrix models
Ambjørn, Jan, Chekhov, L. & Makeenko, Y., Mar 2018, In: Nuclear Physics B. 928, p. 1-20 20 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2017
- Published
A modified Friedmann equation
Ambjørn, Jan & Watabiki, Y., 28 Dec 2017, In: Modern Physics Letters A. 32, 40, 1750224.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The use of Pauli-Villars regularization in string theory
Ambjørn, Jan & Makeenko, Y., 10 Nov 2017, In: International Journal of Modern Physics A. 32, 31, 1750187.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Scattering amplitudes of regularized bosonic strings
Ambjørn, Jan & Makeenko, Y., 30 Oct 2017, In: Physical Review D. 96, 8, 086024.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Four-dimensional CDT with toroidal topology
Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A., Grosvenor, K. & Jurkiewicz, J., 8 Aug 2017, In: Nuclear Physics B. 922, p. 226-246Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Creating 3, 4, 6 and 10-dimensional spacetime from W3 symmetry
Ambjørn, Jan & Watabiki, Y., 10 Jul 2017, In: Physics Letters B. 770, p. 252-256Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Stability of the nonperturbative bosonic string vacuum
Ambjørn, Jan & Makeenko, Y., 10 Jul 2017, In: Physics Letters B. 770, p. 352-356Research output: Contribution to journal › Journal article › Research › peer-review
- Published
New higher-order transition in causal dynamical triangulations
Ambjørn, Jan, Coumbe, D., Gizbert-Studnicki, J., Gorlich, A. & Jurkiewicz, J., 16 Jun 2017, In: Physical Review D. 95, 12, 124029.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
CDT and the big bang
Ambjørn, Jan & Watabiki, Y., 1 Apr 2017, In: Acta Physica Polonica B, Proceedings Supplement. 10, 2, p. 299-303Research output: Contribution to journal › Conference article › Research › peer-review
- Published
Characteristics of the new phase in CDT
Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J., Klitgaard, N. & Loll, R., 9 Mar 2017, In: European Physical Journal C. 77, 3, 152.Research output: Contribution to journal › Journal article › Research › peer-review
- 2016
- Published
Impact of topology in causal dynamical triangulations quantum gravity
Ambjørn, Jan, Drogosz, Z., Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., 8 Aug 2016, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 94, 4, 044010.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Searching for a continuum limit in causal dynamical triangulation quantum gravity
Ambjørn, Jan, Coumbe, D. N., Gizbert-Studnicki, J. & Jurkiewicz, J., 17 May 2016, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 93, 10, 104032.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
String theory as a Lilliputian world
Ambjørn, Jan & Makeenko, Y., 10 May 2016, In: Physics Letters B. 756, p. 142-146Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Scaling behavior of regularized bosonic strings
Ambjørn, Jan & Makeenko, Y., 22 Mar 2016, In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 93, 6, 066007.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Generalized multicritical one-matrix models
Ambjørn, Jan, Budd, T. & Makeenko, Y., 2016, In: Nuclear Physics, Section B. 913, p. 357-380 24 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2015
- Published
A model for emergence of space and time
Ambjørn, Jan & Watabiki, Y., 7 Oct 2015, In: Physics Letters B. 749, p. 149-152Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Signature change of the metric in CDT quantum gravity?
Ambjørn, Jan, Coumbe, D. N., Gizbert-Studnicki, J. & Jurkiewicz, J., 7 Aug 2015, In: Journal of High Energy Physics (Online). 2015, 8, 033.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Wilson loops in nonperturbative quantum gravity
Ambjørn, Jan, Gorlich, A., Jurkiewicz, J. & Loll, R., 7 Jul 2015, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 92, 2, 024013.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Matrix model for strings beyond the c=1 barrier: The spin-s Heisenberg model on random surfaces
Ambjørn, Jan, Khachatryan, S. & Sedrakyan, A., 6 Jul 2015, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 92, 2, 026002.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The microscopic structure of 2D CDT coupled to matter
Ambjørn, Jan, Gorlich, A., Jurkiewicz, J. & Zhang, H., 30 Jun 2015, In: Physics Letters B. 746, p. 359-364Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The spectral dimension in 2D CDT gravity coupled to scalar fields
Ambjørn, Jan, Gorlich, A., Jurkiewicz, J. & Zhang, H., 30 Apr 2015, In: Modern Physics Letters A. 30, 13, 1550077.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A c=1 phase transition in two-dimensional CDT/Horava-Lifshitz gravity?
Ambjørn, Jan, Gorlich, A., Jurkiewicz, J. & Zhang, H., 9 Apr 2015, In: Physics Letters B: Particle Physics, Nuclear Physics and Cosmology. 743, p. 435-439Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Exploring the spectrum of regularized bosonic string theory
Ambjørn, Jan & Makeenko, Y., 1 Mar 2015, In: Journal of Experimental and Theoretical Physics. 120, 3, p. 470-476Research output: Contribution to journal › Journal article › Research › peer-review
- 2014
- Published
A MATRIX MODEL FOR HYPERGEOMETRIC HURWITZ NUMBERS
Ambjørn, Jan & Chekhov, L. O., 1 Dec 2014, In: Teoreticheskaya i Matematicheskaya Fizika. 181, 3, p. 1486-1498Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Geodesic distances in Liouville quantum gravity
Ambjørn, Jan & Budd, T. G., 1 Dec 2014, In: Nuclear Physics, Section B. 889, p. 676-691Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Two-dimensional causal dynamical triangulations with gauge fields
Ambjørn, Jan & Ipsen, A. C., 24 Sep 2014, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 88, 6, 5 p., 067502.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Scale-dependent Hausdorff dimensions in 2d gravity
Ambjørn, Jan, Budd, T. & Watabiki, Y., 7 Sep 2014, In: Physics Letters B: Particle Physics, Nuclear Physics and Cosmology. 736, p. 339-343Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Renormalization group flow in CDT
Ambjørn, Jan, Goerlich, A., Jurkiewicz, J., Kreienbuehl, A. & Loll, R., 21 Aug 2014, In: Classical and Quantum Gravity. 31, 16, 165003.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A note on the Lee-Yang singularity coupled to 2d quantum gravity
Ambjørn, Jan, Gorlich, A., Ipsen, A. C. & Zhang, H. -., 30 Jul 2014, In: Physics Letters B: Particle Physics, Nuclear Physics and Cosmology. 735, p. 191-194Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The effective action in 4-dim CDT. The transfer matrix approach
Ambjørn, Jan, Gizbert-Studnicki, J., Görlich, A. & Jurkiewicz, J., 6 Jun 2014, In: Journal of High Energy Physics (Online). 2014, 6, 034.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Effective QCD string beyond the Nambu-Goto action
Ambjørn, Jan, Makeenko, I. & Sedrakyan, A., 21 May 2014, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 89, 10, 106010.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A restricted dimer model on a two-dimensional random causal triangulation
Ambjørn, Jan, Durhuus, Bergfinnur & Wheater, J. F., 2014, In: Journal of Physics A: Mathematical and Theoretical. 47, 365001 .Research output: Contribution to journal › Journal article › Research › peer-review
- 2013
- Published
Two-Dimensional Quantum Geometry
Ambjørn, Jan, Nijmegen, U. & Budd, T. G., 31 Oct 2013, In: Acta Physica Polonica B. 44, p. 2537-2558Research output: Contribution to journal › Conference article › Research › peer-review
- Published
Euclidian 4d quantum gravity with a non-trivial measure term
Ambjørn, Jan, Glaser, L., Görlich, A. & Jurkiewicz, J., 16 Oct 2013, In: Journal of High Energy Physics (Online). 2013, 10, 100.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The XXZ Heisenberg model on random surfaces
Ambjørn, Jan & Sedrakyan, A., 21 Sep 2013, In: Nuclear Physics B. 874, 3, p. 877-888Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Trees and spatial topology change in CDT
Ambjørn, Jan & Budd, T. G., 19 Jul 2013, In: Journal of Physics A: Mathematical and Theoretical. 46, 31Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Universality of 2d causal dynamical triangulations
Ambjørn, Jan & Ipsen, A. C., 9 Jul 2013, In: Physics Letters B. 724, 1-3, p. 150-154Research output: Contribution to journal › Journal article › Research › peer-review
- Published
CAUSAL DYNAMICAL TRIANGULATIONS AND THE SEARCH FOR A THEORY OF QUANTUM GRAVITY
Ambjørn, Jan, Görlich, A., Jurkiewicz, J. & Roll, R., 1 Jul 2013, In: International Journal of Modern Physics D. 22, 9, 19 p., 1330019.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The toroidal Hausdorff dimension of 2d Euclidean quantum gravity
Ambjørn, Jan & Budd, T. G., 16 May 2013, In: Physics Letters B. 724, 4-5, p. 328-332Research output: Contribution to journal › Journal article › Research › peer-review
- Published
2d CDT is 2d Horava-Lifshitz quantum gravity
Ambjørn, Jan, Glaser, L., Sato, Y. & Watabiki, Y., 13 Mar 2013, In: Physics Letters B: Particle Physics, Nuclear Physics and Cosmology. 722, 1-3, p. 172-175Research output: Contribution to journal › Journal article › Research › peer-review
- 2012
- Published
Semi-classical dynamical triangulations
Ambjørn, Jan & Budd, T. G., 15 Nov 2012, In: Physics Letters B. 718, 1, p. 200-204 4 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Nonperturbative quantum gravity
Ambjørn, Jan, Goerlich, A., zJukiewic, J. & Loll, R., 1 Oct 2012, In: Physics Reports. 519, 4-5, p. 127-210 3 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The transfer matrix in four-dimensional CDT
Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A. T. & Jurkiewicz, J., 1 Sep 2012, In: Journal of High Energy Physics (Online). 2012, 9, p. 017Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Second-and first-order phase transitions in causal dynamical triangulations
Ambjørn, Jan, Jordan, S., Loll, R. & Jurkiewicz, J., 20 Jun 2012, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 85, 12, p. 124044Research output: Contribution to journal › Journal article › Research › peer-review
- Published
New multicritical matrix models and multicritical 2d CDT
Ambjørn, Jan, Glaser, L., Gorlich, A. & Sato, Y., 30 May 2012, In: Physics Letters B. 712, 1-2, p. 109-114Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Roaming moduli space using dynamical triangulations
Ambjørn, Jan, Barkley, J. & Budd, T. G., 11 May 2012, In: Nuclear Physics B. 858, 2, p. 267-292Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Remarks on holographic Wilson loops and the Schwinger effect
Ambjørn, Jan & Makeenko, Y., 5 Mar 2012, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 85, 6, p. 061901Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Pseudo-topological transitions in 2D gravity models coupled to massless scalar fields
Ambjørn, Jan, Gorlich, A. T., Jurkiewicz, J. & Zhang, H., 2012, In: Nuclear Physics B. 863, 2, p. 421-434Research output: Contribution to journal › Journal article › Research › peer-review
- 2011
- Published
Baby universes revisited
Ambjørn, Jan, Barkley, J., Budd, T. & Loll, R., 30 Nov 2011, In: Physics Letters B. 706, 1, p. 86-89Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Second-order phase transition in causal dynamical triangulations
Ambjørn, Jan, Jordan, S., Jurkiewicz, J. & Loll, R., 15 Nov 2011, In: Physical Review Letters. 107, 21, p. 211303Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The semiclassical limit of causal dynamical triangulations
Ambjørn, Jan, Gorlich, A., Jurkiewicz, J., Gizbert-Studnicki, J. & Trzesniewski, T., 1 Aug 2011, In: Nuclear Physics B. 849, 1, p. 144-165 21 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
CDT as a scaling limit of matrix models
Ambjørn, Jan, 1 May 2011, In: Acta Physica Polonica B. 42, 5, p. 923-937Research output: Contribution to journal › Conference article › Research › peer-review
- 2010
- Published
CDT-a entropic theory of quantum gravity: Lectures given at International Workshop on Continuum and Lattice Approaches to Quantum Gravity, Brighton, United Kingdom, 17-19 Sep 08
Ambjørn, Jan, Görlich, A., Jurkiewicz, J. & Loll, R., 1 Jul 2010, 49 p. United KingdomResearch output: Other contribution › Research
- Published
CDT meets Horova-Lifshitz gravity
Ambjørn, Jan, Görlich, A., Jordan, S., Jurkiewicz, J. & Loll, R., 28 Jun 2010, In: Physics Letters B. 690, 4, p. 413-419 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Geometry of the quantum universe
Ambjørn, Jan, Görlich, A., Jurkiewicz, J. & Loll, R., 28 Jun 2010, In: Physics Letters B. 690, 4, p. 420-426 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Causal random geometry from stochastic quantization: XI Latin American Workshop on Nonlinear Phenomena
Ambjørn, Jan, Loll, R., Westra, W. & Zohren, S., 5 Apr 2010, In: Journal of Physics - Conference Series. 246, 1, p. 012028 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Deriving spacetime from first principles
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 1 Apr 2010, In: Annalen der Physik. 19, 3-5, p. 186-195 9 p.Research output: Contribution to journal › Conference article › Research › peer-review
- Published
Quantum gravity as sum over spacetimes
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 1 Feb 2010, In: Lecture Notes in Physics. 807, p. 59-124Research output: Contribution to journal › Journal article › Research › peer-review
- 2009
- Published
New aspects of two-dimensional quantum gravity
Ambjørn, Jan, Loll, R., Watabiki, Y., Westra, W. & Zohren, S., 1 Dec 2009, In: Acta Physica Polonica B. 40, 12, p. 3479-3507 35 p.Research output: Contribution to journal › Conference article › Research › peer-review
- Published
The self-organized de sitter universe
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 1 Dec 2009, In: International Journal of Modern Physics D. 17, 13-14, p. 2515-2520 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Stochastic quantization and the role of time in quantum gravity
Ambjørn, Jan, Loll, R., Westra, W. & Zohren, S., 5 Oct 2009, In: Physics Letters B. 680, 4, p. 359-364 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Summing over all topological in CDT string field theory
Ambjørn, Jan, Loll, R., Westra, W. & Zohren, S., 13 Jul 2009, In: Physics Letters B. 678, 2, p. 227-232 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Shaken, but not stirred: Potts model coupled to quantum gravity
Ambjørn, Jan, Anagnostopoulos, K. N., Loll, R. & Pushkina, I., 21 Jan 2009, In: Nuclear Physics B. 807, 1-2, p. 251-264 19 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2008
- Published
A new continuum limit of matrix models
Ambjørn, Jan, Loll, R., Watabiki, Y., Westra, W. & Zohren, S., 18 Dec 2008, In: Physics Letters B. 670, 2, p. 224-230 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The quantum universe
Ambjørn, Jan, Görlich, A., Jurkiewicz, J. & Loll, R., 17 Dec 2008, In: Acta Physica Polonica B. 39, 12, p. 3309-3341 34 p.Research output: Contribution to journal › Conference article › Research › peer-review
- Published
A causal alternative for c=0 strings
Ambjørn, Jan, Loll, R., Watabiki, Y., Westra, W. & Zohren, S., 2 Dec 2008, In: Acta Physica Polonica B. 39, 12, p. 3355-3364 10 p.Research output: Contribution to journal › Conference article › Research › peer-review
- Published
Nonpertubative quantum de Sitter universe
Ambjørn, Jan, Görlich, A., Jurkiewicz, J. & Loll, R., 26 Sep 2008, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 78, 6, p. 063544Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A matrix model for 2D quantum gravity defined by causal dynamical triangulations
Ambjørn, Jan, Loll, R., Watabiki, Y., Westra, W. & Zohren, S., 24 Jul 2008, In: Physics Letters B. 665, 4, p. 252-256 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The self-organized quantum Universe
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 1 Jul 2008, In: Scientific American. 299, 1, p. 42-49 7 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A string field theory based on causal dynamical triangulations
Ambjørn, Jan, Loll, R., Watabiki, Y., Westra, W. & Zohren, S., 1 May 2008, In: Journal of High Energy Physics (Online). 2008, 5, p. 032Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Planckian birth of a quantum de Sitter universe
Ambjørn, Jan, Goerlich, A., Jurkiewicz, J. & Loll, R., 7 Mar 2008, In: Physical Review Letters. 100, 9, p. 091304Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The nature of ZZ branes
Ambjørn, Jan & Gesser, J. A., 24 Jan 2008, In: Physics Letters B. 659, 3, p. 718-722 5 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Topology change in causal quantum gravity
Ambjørn, Jan, Loll, R., Watabiki, Y., Westra, W. & Zohren, S., 2008, Proceedings of 17th Workshop on General Relativity and Gravitattion in Japan: Nagoya, Japan, 3-7 Dec 2007. 4 p.Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research
- 2007
- Published
Putting a cap on causality violations in causal dynamical triangulations
Ambjørn, Jan, Ambjørn, Jan, Loll, R., Westra, W. & Zohren, S., 1 Dec 2007, In: Journal of High Energy Physics (Online). 2007, 12, p. 017Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Wilson loops in 2D noncommutative euclidean gauge theory: 2. 1/T expansion
Ambjørn, Jan, Dubin, A. & Makeenko, Y., 22 Oct 2007, In: Journal of High Energy Physics (Online). 2007, 12, p. 079Research output: Contribution to journal › Journal article › Research › peer-review
- Published
World-sheet dynamics of ZZ-branes
Ambjørn, Jan, Gesser, J. A. & Gesser, J. A., 27 Sep 2007, In: Physics Letters B. 653, 5-6, p. 439-444 6 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
ZZ branes from a wroldsheet perspective
Ambjørn, Jan & Gesser, J. A., 1 Jun 2007, In: Acta Physica Polonica B. 38, 13, Special Issue, p. 3993-4007 12 p.Research output: Contribution to journal › Conference article › Research › peer-review
- 2006
- Published
The emergence of background geometry from quantum fluctuations
Ambjørn, Jan, Janik, R., Westra, W. & Zohren, S., 28 Sep 2006, In: Physics Letters B. 641, 1, p. 94-98Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The universe from scratch
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 30 Mar 2006, In: Contemporary Physics. 47, 2, p. 103-117Research output: Contribution to journal › Review › Research › peer-review
- Published
Wrapping interactions and a new source of corrections to the spin-chain/string duality
Ambjørn, Jan, Janik, R. A. & Kristjansen, Charlotte Fløe, 27 Feb 2006, In: Nuclear Physics B. 736, 3, p. 288-301Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Simplified tetrahedron equations: Fermionic realization
Ambjørn, Jan, Khachatyan, S. & Sedrakyan, A., 6 Feb 2006, In: Nuclear Physics B. 734, 3, p. 287-303Research output: Contribution to journal › Journal article › Research › peer-review
- 2005
- Published
The spectral dimension of the universe is scale dependent
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 21 Oct 2005, In: Physical Review Letters. 95, 17, p. 171301Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Reconstructing the universe
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 22 Sep 2005, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 72, 6, p. 064014Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The emergence of noncommutative target space in noncritical string theory
Ambjørn, Jan & Janik, R. A., 1 Aug 2005, In: Journal of High Energy Physics (Online). 2005, 8, p. 057Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Semiclassical universe from first principles
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 10 Feb 2005, In: Physics Letters B. 607, 3-4, p. 205-213Research output: Contribution to journal › Journal article › Research › peer-review
- 2004
- Published
Quantum rolling tachyon
Ambjørn, Jan & Janik, R. A., 23 Dec 2004, In: Physics Letters B. 604, 3-4, p. 225-234Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The geometry of ZZ-branes
Ambjørn, Jan, Arianos, S., Gesser, J. A. & Kawamoto, S., 14 Oct 2004, In: Physics Letters B. 599, 3-4, p. 306-312Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Emergence of a 4D world from causal quantum gravity
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 24 Sep 2004, In: Physical Review Letters. 93, 13, p. 131301Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Noncommutativity of the zero chemical potential limit and the thermodynamic limit in finite density systems
Ambjørn, Jan, Anagnostopoulos, K. N., Nishimura, J. & Verbaarschot, J. M., 25 Aug 2004, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 70, 3, p. 035010Research output: Contribution to journal › Journal article › Research › peer-review
- Published
An integrable model with a non-reducible three particle R-matrix
Ambjørn, Jan, Khachatryan, S. & Sedrakyan, A., 30 Jul 2004, In: Journal of Physics A: Mathematical and Theoretical. 37, 30, p. 7397-7406Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Wilson loops in 2D noncommutative euclidean gauge theory 1. Perturbative expansion
Ambjørn, Jan, Dubin, A. & Makeenko, Y., 1 Jul 2004, In: Journal of High Energy Physics (Online). 2004, 7, p. 044Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The factorization method for Monte Carlo simulations of systems with a complex action
Ambjørn, Jan, Anagnostopoulos, K. N., Nishimura, J. & Verbaarschot, J. J. M., 29 Apr 2004, In: Nuclear physics B, Proceedings supplements. 129, p. 530-532Research output: Contribution to journal › Conference article › Research › peer-review
- Published
The decay of quantum D-branes
Ambjørn, Jan & Janik, R. A., 25 Mar 2004, In: Physics Letters B. 584, 1-2, p. 155-162Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Renormalization of 3d quantum gravity from matrix models
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 19 Feb 2004, In: Physics Letters B. 581, 3-4, p. 255-262Research output: Contribution to journal › Journal article › Research › peer-review
- Published
An intergrable model with non-reducible three partical R- matrix
Ambjørn, Jan, Khachatryan, S. & Sedrakyan, A., 2004, In: Journal of Physics A: Mathematical and Theoretical (Print Edition). 37, 30, p. 7397-7406Research output: Contribution to journal › Journal article › Research › peer-review
- 2003
- Published
Towards a diagrammatic derivation of the Veneziano-Yankielowicz-Taylor superpotential
Ambjørn, Jan & Janik, R. A., 4 Sep 2003, In: Physics Letters B. 569, 1-2, p. 81-84Research output: Contribution to journal › Journal article › Research › peer-review
- Published
String theory in electromagnetic fields
Ambjørn, Jan, 1 Feb 2003, In: Journal of High Energy Physics (Online). 2003, 2, p. 026Research output: Contribution to journal › Journal article › Research › peer-review
- Published
3-D lorentzian quantum gravity from the asymmetric ABAB matrix model
Ambjørn, Jan, Jurkiewicz, J., Loll, R. & Vernizzi, G., 2003, In: Acta Physica Polonica B. 34, 10, p. 4667-4688Research output: Contribution to journal › Journal article › Research › peer-review
- 2002
- Published
Stripes from (noncommutative) stars
Ambjørn, Jan & Catteral, S., 28 Nov 2002, In: Physics Letters B. 549, 1-2, p. 253-259Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The factorization method for systems with a complex action. A test in random matrix theory for finite density QCD
Ambjørn, Jan, Anagnostopoulos, K. N. & Nishimura, J., 1 Oct 2002, In: Journal of High Energy Physics (Online). 2002, 10, p. 062Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Interpolation between Open and Closed Strings - a BSFT Approach
Ambjørn, Jan & Janik, R. A., 27 Jun 2002, In: Physics Letters B. 538, 1-2, p. 189-196Research output: Contribution to journal › Journal article › Research › peer-review
- Published
3d Lorentzian, dynamically triangulated quantum gravity
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 28 May 2002, In: Nuclear physics B, Proceedings supplements. 106, p. 980-982Research output: Contribution to journal › Conference article › Research › peer-review
- Published
A Lorentzian cure for euclidean troubles
Ambjørn, Jan, Dasgupta, A., Jurkiewicz, J. & Loll, R., 28 May 2002, In: Nuclear physics B, Proceedings supplements. 106, p. 977-979Research output: Contribution to journal › Conference article › Research › peer-review
- Published
On the Quantum Geometry of String Theory
Ambjørn, Jan, Anagnostopoulos, K. N. & Nishimura, J., 28 May 2002, In: Nuclear Physics, Section B, Proceedings Supplements. 106, p. 965-967Research output: Contribution to journal › Conference article › Research › peer-review
- Published
Real-time dynamics of a hot Yang-Mills theory: A nummerical analysis
Ambjørn, Jan & Anagnostopoulos, K. N., 28 May 2002, In: Nuclear Physics, Section B, Proceedings Supplements. 106, vol. 106, p. 546-548Research output: Contribution to journal › Conference article › Research › peer-review
- Published
Strings, Quantum Gravity and Non-commutative Geometry on the Lattice
Ambjørn, Jan, 28 May 2002, In: Nuclear Physics, Section B, Proceedings Supplements. 106, p. 62-70Research output: Contribution to journal › Conference article › Research › peer-review
- Published
On the spontaneous breakdown of Lorentz symmetry in matrix models of superstrings
Ambjørn, Jan, Anagnostopoulos, K. N. & Nishimura, J., 15 Apr 2002, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 65, 8 part b, p. 086001Research output: Contribution to journal › Journal article › Research › peer-review
- 2001
- Published
Dynamically triangulating Lorentzian quantum gravity
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 3 Sep 2001, In: Nuclear Physics B. 610, 1-2, p. 347-382Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Lorentzian 3d gravity with wormholes via matrix models
Ambjørn, Jan, Jurkiewicz, J., Loll, R. & Vernizzi, G., 1 Sep 2001, In: Journal of High Energy Physics (Online). 2001, 9, p. 022Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Nonperturbative 3d Lorentzian quantum gravity
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 15 Aug 2001, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 64, 4, p. 044011Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Integrable ladder t-J model with staggered shift of the spectral parameter
Ambjørn, Jan, Amaudon, D., Sedrakyan, A. & Sorba, T., 3 Aug 2001, In: Journal of Physics A: Mathematical and Theoretical. 34, 30, p. 5887-5900Research output: Contribution to journal › Journal article › Research › peer-review
- Published
High-temperature, classical, real-time dynamics of non-abelian gauge theories as seen by a computer
Ambjørn, Jan, Anagnostopoulos, K. N. & Kransitz, A., 1 Jun 2001, In: Journal of High Energy Physics (Online). 2001, 6, p. 069Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Computer simulations of 3d Lorentzian quantum gravity
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 29 Apr 2001, In: Nuclear Physics, Section B, Proceedings Supplements. 94, p. 689-692Research output: Contribution to journal › Conference article › Research › peer-review
- Published
Simulating simplified versions of the IKKT matrix model
Ambjørn, Jan, Anagnostopoulos, K. N., Hotta, T. & Nishimura, J., 29 Apr 2001, In: Nuclear Physics, Section B, Proceedings Supplements. 94, p. 685-688Research output: Contribution to journal › Conference article › Research › peer-review
- Published
Fermionization of the spin S Uimin-Lai-Sutherland model: generalization of supersymmetric t-J model to spin S
Ambjørn, Jan, Karakhanyan, D., Mirumyan, M. & Sedrakyan, A., 9 Apr 2001, In: Nuclear Physics B. 599, 3, p. 547-560Research output: Contribution to journal › Journal article › Research › peer-review
- Published
High Temperature, Classical, Real Time Dynamics of Nonabelian Gauge Theories as Seen by a Computer
Ambjørn, Jan & Anagnostopoulos, K. N., 2001, In: JHEP. 0106, p. 069Research output: Contribution to journal › Journal article › Research › peer-review
- 2000
- Published
Nonperturbative Lorentzian path integral for gravity
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 31 Jul 2000, In: Physical Review Letters. 85, 5, p. 924-927Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Large N dynamics of dimensionally reduced 4D SU(N) super Yang-Mills theory
Ambjørn, Jan, Anagnostopoulos, K. N. & Nishimura, J., 1 Jul 2000, In: Journal of High Energy Physics (Online). 2000, 7, p. 013Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Monte Carlo studies of the IIB matrix model at large N
Ambjørn, Jan, Anagnostopoulos, K. N., Bietenholz, W., Nishimura, J. & Hotta, T., 1 Jul 2000, In: Journal of High Energy Physics (Online). 2000, 7, p. 011Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Making the Gravitational Path Integral More Lorentzian, or Life Beyond Liouville Gravity
Ambjørn, Jan, Anagnostopoulos, K. N. & Loll, R., 1 Jun 2000, In: Nuclear physics B, Proceedings supplements. 88, p. 241-244Research output: Contribution to journal › Conference article › Research › peer-review
- Published
Nonperturbative dynamics of noncommutative gauge theory
Ambjørn, Jan, Makeenko, Y. M., Nishimura, J. & Szabo, R. J., 11 May 2000, In: Physics Letters B. 480, 3-4, p. 399-408Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Recursive sampling simulations of 3D gravity coupled to scalar fermions
Ambjørn, Jan, Boulatov, D. V., Kawamoto, N. & Watabiki, Y., 11 May 2000, In: Physics Letters B. 480, 3-4, p. 319-330Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Lattice gauge fields and discrete non-commutative Yang-Mills theory
Ambjørn, Jan, Nishimura, J., Szabo, R. J. & Makeenko, Y. M., 1 May 2000, In: Journal of High Energy Physics (Online). 2000, 5, p. 023Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Connected correlators in random geometries
Ambjørn, Jan, Bialas, P. & Jurkiewicz, J., 1 Apr 2000, In: Nuclear physics B, Proceedings supplements. 83-84, p. 736-738Research output: Contribution to journal › Conference article › Research › peer-review
- Published
On the phase diagram of 2d Lorentzian quantum gravity
Ambjørn, Jan, Anagnostopoulos, K. N. & Loll, R., 1 Apr 2000, In: Nuclear physics B, Proceedings supplements. 83-84, p. 733-735Research output: Contribution to journal › Conference article › Research › peer-review
- Published
Recent analytical results in 4D-dynamical triangulations
Ambjørn, Jan, Carfora, M., Marzuoli, A. & Villani, P., 1 Apr 2000, In: Nuclear physics B, Proceedings supplements. 83-84, p. 745-747Research output: Contribution to journal › Conference article › Research › peer-review
- Published
Vortex structure in abelian-projected lattice gauge theory
Ambjørn, Jan, Greensite, J. P. & Griedt, J., 1 Apr 2000, In: Nuclear physics B, Proceedings supplements. 83-84, p. 467-469Research output: Contribution to journal › Conference article › Research › peer-review
- Published
The relation between Euclidean and Lorentzian 2D quantum gravity
Ambjørn, Jan, Gonçalves Dias Correia, J. L., Kristjansen, Charlotte Fløe & Loll, R., 24 Feb 2000, In: Physics Letters B. 475, 4, p. 24-32Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Crossing the c=1 barrier in 2D Lorentzian quantum gravity
Ambjørn, Jan, Anagnostopoulos, K. N. & Loll, R., 15 Feb 2000, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 61, 4, p. 44010Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Vortex structure vs. monopole dominance in abelian-projected gauge theory
Ambjørn, Jan, Greensite, J. P. & Giedt, J., 1 Feb 2000, In: Journal of High Energy Physics (Online). 2000, 2, p. 033Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Nonpertubative Dynamics of Noncommutative Gauge Theory
Ambjørn, Jan, Nishimura, J., Szabo, R. J. & Makeenko, Y. M., 2000, In: Phys. Lett.. B480, p. 399Research output: Contribution to journal › Journal article › Research › peer-review
- 1999
- Published
New perspective on matter coupling in 2D quantum gravity
Ambjørn, Jan, Anagnostopoulos, K. N. & Loll, R., 15 Nov 1999, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 60, 10, p. 104035Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Screening and D-brane dynamics in finite temperature superstring theory
Ambjørn, Jan, Makeenko, Y. M., Semenoff, G. W. & Szabo, R. J., 15 Nov 1999, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 60, 10, p. 106009Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Bethe Ansatz and thermodynamic limit of affine quantum group invariant extensions of the t-J model
Ambjørn, Jan, Avakyan, A., Hakobyan, T. & Sedrakyan, A., 1 Nov 1999, In: Journal of Mathematical Physics. 40, 11, p. 5687-5701Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Finite N matrix models of noncommutative gauge theory
Ambjørn, Jan, Makeenko, Y. M., Nishimura, J. & Szabo, R. J., 1 Nov 1999, In: Journal of High Energy Physics (Online). 1999, 11, p. 029Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Abelian gauge fields coupled to simplicial quantum gravity
Ambjørn, Jan, Anagnostopoulos, K. N. & Jurkiewicz, J., 28 Oct 1999, In: Journal of High Energy Physics. 1999, 8, p. 016Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Connected correlators in quantum gravity
Ambjørn, Jan, Bialas, P. & Jurkiewicz, J., 28 May 1999, In: Journal of High Energy Physics. 1999, 2, p. 005Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Four-dimensional gonihedric gauge spin system
Ambjørn, Jan, Koutsoumbas, G. & Savvidy, G. W., 1 May 1999, In: EPL. 46, 3, p. 319-325Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Crumpled triangulations and critical points in 4D simplicial quantum gravity
Ambjørn, Jan, Carfora, M., Gabrielli, D. & Marzuoli, A., 8 Mar 1999, In: Nuclear Physics B. 542, 1-2, p. 349-394Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Quantum geometry and diffusion
Ambjørn, Jan, Anagnostopoulos, K. N., Ichihara, T., Jensen, L. & Watabiki, Y., 12 Feb 1999, In: Journal of High Energy Physics (Online). 1999, 11, p. 022Research output: Contribution to journal › Journal article › Research
- Published
Euclidean and Lorentzian quantum gravity - lessons from two dimensions
Ambjørn, Jan, Loll, R., Nielsen, J. L. & Rolf, J., 1 Feb 1999, In: Chaos, Solitons & Fractals. 10, 2-3, p. 177-195Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Thermodynamics of D0-branes in matrix theory
Ambjørn, Jan, Makeenko, Y. M. & Semenoff, G. W., 7 Jan 1999, In: Physics Letters B. 445, 3-4, p. 307-315Research output: Contribution to journal › Journal article › Research › peer-review
- Published
U(1) Lattice Gauge Theory and N = 2 Supersymmetric Yang-Mills Theory
Ambjørn, Jan, Sasakura, N. & Espriu, D., 2 Jan 1999, In: Fortschritte der Physik. 47, 1-3, p. 287-292Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Quantum Geometry
Ambjørn, Jan, 1999, Geometry in Present Day Science. p. 1-20Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Communication
- Published
Two-Dimensional Quantum Geometry
Ambjørn, Jan, Nielsen, J. L. & Rolf, J., 1999, In: Fortschr. Phys.. Vol. 47, p. 152-171Research output: Contribution to journal › Journal article › Research › peer-review
- 1998
- Published
Non-perturbative Lorentzian quantum gravity, causality and topology change
Ambjørn, Jan & Loll, R., 21 Dec 1998, In: Nuclear Physics B. 536, 1-2, p. 407-434Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The NBI matrix model of IIB Superstrings
Ambjørn, Jan & Chekhov, L., 1 Dec 1998, In: Journal of High Energy Physics (Online). 1998, 12, p. 007Research output: Contribution to journal › Journal article › Research
- Published
Center Disorder in the 3D Georgi-Glashow Model
Ambjørn, Jan & Greensite, J., 1 May 1998, In: Journal of High Energy Physics (Online). 1998, 5, p. 004Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Complex zeros of the 2-d ising model on dynamical random lattices.
Ambjørn, Jan, Anagnostopoulos, K. N. & Magnea, U., 1 Apr 1998, In: Nuclear physics B, Proceedings supplements. 63, p. 751-753Research output: Contribution to journal › Journal article › Research
- Published
Intrinsic geometric structure of c = -2 quantum gravity.
Ambjørn, Jan, Anagnostopoulos, K. N., Ichihara, T., Jensen, L., Kawamoto, N., Watabiki, Y. & Yotsuji, K., 1 Apr 1998, In: Nuclear physics B, Proceedings supplements. 63, p. 748-750Research output: Contribution to journal › Journal article › Research
- Published
Sphaleron transition rate: recent numerical results
Ambjørn, Jan & Krasnitz, A., 1 Apr 1998, In: Nuclear physics B, Proceedings supplements. 63, p. 575-577Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The Concept of Time in 2D Quantum Gravity
Ambjørn, Jan, Anagnostopoulos, K. N., Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 1 Apr 1998, In: Journal of High Energy Physics. 1998, 4, 016.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The quantum space-time of c > 0 2-d gravity.
Ambjørn, Jan, Anagnostopoulos, K. N. & Thorleifsson, G., 1 Apr 1998, In: Nuclear physics B, Proceedings supplements. 60, p. 742-744Research output: Contribution to journal › Journal article › Research
- Published
A new family of integrable extended multi-band Hubbard Hamiltonians
Ambjørn, Jan, Sedrakyan, A., Avakyan, A. & Hakobyan, T., 7 Mar 1998, In: Modern Physics Letters A. 13, 7, p. 495-503Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The quantum space-time of c=-2 gravity
Ambjørn, Jan, Anagnostopoulos, K. N., Ichihara, T., Jensen, L., Kawamoto, N., Watabiki, Y. & Yotsuji, K., 9 Feb 1998, In: Nuclear Physics B. 511, 3, p. 673-710Research output: Contribution to journal › Journal article › Research
- Published
The spectral dimension of 2D quantum gravity
Ambjørn, Jan, Boulatov, D., Nielsen, J. L., Rolf, J. J. & Watabiki, Y., 1 Feb 1998, In: Journal of High Energy Physics (Online). 1998, 02, p. 010Research output: Contribution to journal › Journal article › Research
- Published
The Quantum Spacetime Of c>0 2d Gravity
Ambjørn, Jan, Anagnostopoulos, K. N. & Thorleifsson, G., 1998, In: Nucl. Phys. B (Proc.Suppl.). 63, p. 742-744Research output: Contribution to journal › Journal article › Research
- 1997
- Published
Spikes in quantum Regge calculus
Ambjørn, Jan, Nielsen, J. L., Rolf, J. J. & Savvidy, G., 1 Dec 1997, In: Classical and Quantum Gravity. 14, 12, p. 3225-3241Research output: Contribution to journal › Journal article › Research
- Published
Improved determination of the classical sphaleron transition rate
Ambjørn, Jan & Krasnitz, A., 24 Nov 1997, In: Nuclear Physics B. 506, 1-2, p. 387-403Research output: Contribution to journal › Journal article › Research
- Published
U(1) lattice gauge theory and N=2 supersymmetric Yang-Mills theory
Ambjørn, Jan, Sasakura, N. & Espriu, D., 20 Nov 1997, In: Modern Physics Letters A. 12, 35, p. 2665-2681Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The two-point function of c=-2 matter coupled to 2D quantum gravity
Ambjørn, Jan, Kristjansen, Charlotte Fløe & Watabiki, Y., 3 Nov 1997, In: Nuclear Physics B. 504, 3, p. 555-578Research output: Contribution to journal › Journal article › Research › peer-review
- Published
On the connection between 2d topological gravity and the reduced Hermitian matrix model
Ambjørn, Jan, Harris, M. G. & Weis, M., 27 Oct 1997, In: Nuclear Physics B. 504, 1-2, p. 482-510Research output: Contribution to journal › Journal article › Research
- Published
Noncritical string field theory for 2d quantum gravity coupled to (p,q)-conformal fields
Ambjørn, Jan & Watabiki, Y., 20 Sep 1997, In: International Journal of Modern Physics A. 12, 23, p. 4257-4289Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Quantum Geometry of 2-D Gravity Coupled to Unitary Matter
Ambjørn, Jan & Anagnostopoulos, K. N., 21 Jul 1997, In: Nuclear Physics B. 497, 1-2, p. 445-478Research output: Contribution to journal › Journal article › Research
- Published
Singularities of the Partition Function for the Ising Model coupled to 2-D Quantum Gravity
Ambjørn, Jan, Anagnostopoulos, K. N. & Magnea, U., 20 Jul 1997, In: Modern Physics Letters A. 12, 22, p. 1605-1628Research output: Contribution to journal › Journal article › Research
- Published
Non-critical Open Strings beyond the Semiclassical Approximation
Ambjørn, Jan, Hayasaka, K. & Nakayama, R., 7 Jun 1997, In: Modern Physics Letters A. 12, 17, p. 1241-1266Research output: Contribution to journal › Journal article › Research
- Published
Quantum Geometry of Topological Gravity
Ambjørn, Jan, Anagnostopoulos, K. N., Ichihara, T., Jensen, L., Kawamoto, N., Watabiki, Y. & Yotsuji, K., 3 Apr 1997, In: Physics Letters B. 397, 3-4, p. 177-184Research output: Contribution to journal › Journal article › Research
- Published
Alternative Actions for Quantum Gravity and the Intrinsic Rigidity of the Space-Time
Ambjørn, Jan, Savvidy, G. K. & Savvidy, K. G., 17 Feb 1997, In: Nuclear Physics B. 486, 1-2, p. 390-412Research output: Contribution to journal › Journal article › Research
- Published
Spin-Spin Correlation Functions of Spin Systems Coupled to 2-D Quantum Gravity for 0 < c < 1
Ambjørn, Jan, Anagnostopoulos, K. N., Magnea, U. & Thorleifsson, G., 1 Feb 1997, In: Nuclear Physics B. Supplement 53, p. 725-727Research output: Contribution to journal › Journal article › Research
- Published
Noncritical String Field Theory for Two-D Quantum Gravity coupled to (p, q) Conformal Fields
Ambjørn, Jan & Watabiki, Y., 1997, In: Int. J. Mod. Phys.. A12, p. 4257-4289Research output: Contribution to journal › Journal article › Research
- Published
Quantum Geometry, a statistical field theory approach
Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 1997, Monographs in Matematical Physics. p. 371Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- Published
Quantum geometry: A statistical field theory point of view
Durhuus, Bergfinnur, Ambjørn, Jan & Jónsson, T., 1997, Cambridge: Cambridge University Press. 363 p.Research output: Book/Report › Book › Research › peer-review
- Published
The Geometry of Dynamical Triangulations
Ambjørn, Jan, Carfora, M. & Marzuoli, A., 1997, Lecture Notes in Physics: N.s. M, Monographs 50. p. 197Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- Published
The fractal Structure of Space-Time
Ambjørn, Jan, 1997, Second International Sakharov Conference on Physics, Moscow, May 18.-25., 1996. Singapore, p. 235Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 1996
- Published
Supersymmetric matrix models and branched polymers
Ambjørn, Jan, Makeenko, Y. & Zarembo, K., 30 Dec 1996, In: Nuclear Physics B. 482, 3, p. 660-674Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Geometrical interpretation of the Knizhnik-Polyakov-Zamolodchikov exponents
Ambjørn, Jan, Anagnostopoulos, K., Magnea, U. & Thorleifsson, G., 28 Nov 1996, In: Physics Letters B. 388, 4, p. 713-719Research output: Contribution to journal › Journal article › Research › peer-review
- Published
New universal spectral correlators
Akemann, G. & Ambjørn, Jan, 21 Nov 1996, In: Journal of Physics A: Mathematical and Theoretical. 29, 22, p. L555-L560Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The measure in three dimensional Nambu-Goto string theory
Ambjørn, Jan & Sedrakyan, A., 3 Oct 1996, In: Physics Letters B. 386, 1-4, p. 99-105Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Correlation functions in the multiple Ising model coupled to gravity
Harris, M. G. & Ambjørn, Jan, 2 Sep 1996, In: Nuclear Physics B. 474, 3, p. 575-601Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Renormalisation group flow in an exactly solvable model with fluctuating geometry
Ambjørn, Jan, Bialas, P. & Jurkiewicz, J., 27 Jun 1996, In: Physics Letters B. 379, 1-2, p. 93-98Research output: Contribution to journal › Journal article › Research › peer-review
- 1995
- Published
The classical sphaleron transition rate exists and is equal to 1.1(awT)4
Ambjørn, Jan & Krasnitz, A., 9 Nov 1995, In: Physics Letters B. 362, 1-4, p. 97-104Research output: Contribution to journal › Journal article › Research
- Published
On the fractal structure of two-dimensional quantum gravity
Ambjørn, Jan, Jurkiewicz, J. & Watabiki, Y., 6 Nov 1995, In: Nucl. Phys.. 454, 1-2, p. 313-342Research output: Contribution to journal › Journal article › Research
- Published
Dynamical triangulations, a gateway to quantum gravity?
Ambjørn, Jan, Jurkiewicz, J. & Watabiki, Y., 1 Nov 1995, In: Journal of Mathematical Physics. 36, 11, p. 6299-6339Research output: Contribution to journal › Journal article › Research
- Published
Scaling in four-dimensional quantum gravity
Ambjørn, Jan & Jurkiewicz, J., 2 Oct 1995, In: Nuclear Physics B. 451, 3, p. 643-676Research output: Contribution to journal › Journal article › Research
- Published
Quantum gravity represented as dynamical triangulations
Ambjørn, Jan, 1 Sep 1995, In: Classical and Quantum Gravity. 12, 9, p. 2079-2134Research output: Contribution to journal › Journal article › Research
- Published
Scaling in quantum gravity
Ambjørn, Jan & Watabiki, Y., 3 Jul 1995, In: Nuclear Physics B. 445, 1, p. 129-142Research output: Contribution to journal › Journal article › Research
- Published
New critical phenomena in 2D quantum gravity
Ambjørn, Jan, Thorleifsson, G. & Wexler, M., 10 Apr 1995, In: Nuclear Physics B. 439, 1-2, p. 187-204Research output: Contribution to journal › Journal article › Research
- Published
Computational ergodicity in simplicial quantum gravity
Ambjørn, Jan & Jurkiewicz, J., 1 Apr 1995, In: Physics Letters B. Supplement 42, p. 704-706Research output: Contribution to journal › Journal article › Research
- Published
Intrinsic geometry of c = 1 random surfaces
Ambjørn, Jan & Jurkiewicz, J., 1 Apr 1995, In: Nuclear Physics B. Suppl. 42, p. 701-703Research output: Contribution to journal › Journal article › Research
- Published
Recent progress in the theory of random surfaces and simplicial quantum gravity
Ambjørn, Jan, 1 Apr 1995, In: Nuclear Physics B. Suppl. 42, p. 3-16Research output: Contribution to journal › Journal article › Research
- Published
Computational ergodicity of S4
Ambjørn, Jan & Jurkiewicz, J., 23 Feb 1995, In: Physics Letters B. 345, 4, p. 435-440Research output: Contribution to journal › Journal article › Research
- Published
Search for scaling dimensions for random surfaces with c = 1
Ambjørn, Jan, Bialas, P., Burda, Z., Jurkiewicz, J. & Peterson, B., 12 Jan 1995, In: Physics Letters B. 342, 1-4, p. 58-65Research output: Contribution to journal › Journal article › Research
- Published
A random surface theory with nontrivial gamma(string)
Ambjørn, Jan, Burda, Z., Jurkiewicz, J. & Peterson, B., 5 Jan 1995, In: Physics Letters B. 341, 3-4, p. 286-292Research output: Contribution to journal › Journal article › Research
- Published
A solvable 2D gravity model with Gamme greater than zero
Durhuus, Bergfinnur, Ambjørn, Jan & Jónsson, T., 1995, In: Modern Physics Letters A. 9, p. 1221-1228Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Physics of c > 1 coupled to gravity
Ambjørn, Jan, 1995, In: Proc. of XXVIII International Symposium Ahrenshoop. p. 116-127Research output: Contribution to journal › Journal article › Research
- Published
Sphaleron-like transitions at high temperature
Ambjørn, Jan, 1995, Proc. of NATO Advanced Research Workshop on Electroweak Physics and the Early Universe. p. 271-286Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- Published
Two obstacles in quantum gravity
Ambjørn, Jan, 1995, Proc. of the conference "Strings '93". p. 387-396Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 1994
- Published
2D quantum gravity coupled to renormalizable matter fields
Ambjørn, Jan & Ghoroku, K., 30 Dec 1994, In: International Journal of Modern Physics A. 9, 32, p. 5689-5709Research output: Contribution to journal › Journal article › Research
- Published
Generalized penner models to all genera
Ambjørn, Jan, Kristjansen, Charlotte Fløe & Makeenko, Y., 15 Oct 1994, In: Physical Review D. 50, 8, p. 5193-5203Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Scaling with a modified Wilson action which suppresses Z2 antifacts in SU(2) lattice gauge theories
Ambjørn, Jan & Thorleifsson, G., 1 Oct 1994, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 50, 7, p. 4715-4717Research output: Contribution to journal › Journal article › Research
- Published
On the Exponential Bound in Four-Dimensional Simplicial Gravity
Ambjørn, Jan & Jurkiewicz, J., 8 Sep 1994, In: Physics Letters B. 335, 3-4, p. 355-358Research output: Contribution to journal › Journal article › Research
- Published
Z2 GAUGE MATTER COUPLED TO 4-D SIMPLICIAL QUANTUM-GRAVITY
Ambjørn, Jan, Jurkiewicz, J., Blike, S., Burda, Z. & Petersson, T., 7 Sep 1994, In: Modern Physics Letters A. 9, 27, p. 2527-2541Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Level crossing for hot sphalerons
Ambjørn, Jan, Farakos, K., Hands, S., Koutsoumas, G. & Thorleifsson, G., 22 Aug 1994, In: Nuclear Physics B. 425, 1-2, p. 39-66Research output: Contribution to journal › Journal article › Research
- Published
A SOLVABLE 2D GRAVITY MODEL WITH ¿>0
Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 30 Apr 1994, In: Modern Physics Letters A. 9, 13, p. 1221-1228Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Effective sampling of random surfaces by baby universe surgery
Ambjørn, Jan, Bialas, P., Burda, Z., Jurkiewicz, J. & Petersson, B., 21 Apr 1994, In: Physics Letters B. 325, 3-4, p. 337-346Research output: Contribution to journal › Journal article › Research
- Published
A universal fractal structure of 2d quantum gravity for c > 1
Ambjørn, Jan & Thorleifsson, G., 3 Mar 1994, In: Physics Letters B. 323, 1, p. 7-12Research output: Contribution to journal › Journal article › Research
- Published
Remarks about c>1 and D>2
Ambjørn, Jan, 1 Mar 1994, In: Theoretical and Mathematical Physics. 98, 3, p. 219-226Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A solvable 2D gravity Model with Gamma greater than Zero
Ambjørn, Jan, Durhuus, Bergfinnur & Jónsson, T., 1994, In: Modern Physics Letters A. 9, p. 1221-1228Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Barriers in Quantum Gravity
Ambjørn, Jan, 1994, String Theory, Gauge Theory and Quantum Gravity 93. Singapore: World Scientific, p. 228-238Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- Published
Electroweak Magnetism, W-condensation and Antiscreening
Ambjørn, Jan & Olesen, P., 1994, Proceedings of the 4th Hellenic School on Elementary Particle Physics. Athens: National Technical University Press, p. 396-407Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- Published
Problems in Quantum Gravity
Ambjørn, Jan, 1994, Proceedings of the Workshop on Strings, Topological Field Theory and Matrix Models. Moscow, p. 241-250Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- Published
Scaling with a modified Wilson action which suppresses Z(2) artifacts in SU(2) lattice gauge theories
Ambjørn, Jan & Thorleifsson, G., 1994, In: Phys. REv.. D 50, p. 4715-4717Research output: Contribution to journal › Journal article › Research
- Published
Z*U2 Gauge Matter Coupled to 4d Simplicial Quantum Gravity
Ambjørn, Jan, Bilke, S., Burda, Z., Jurkiewicz, J. & Petersson, B., 1994, In: Mod. Phys. Lett.. A9, p. 2527-2533Research output: Contribution to journal › Journal article › Research
- 1993
- Published
4-dimensional dynamically triangulated gravity coupled to matte
Ambjørn, Jan, Burda, Z., Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 15 Oct 1993, In: Physical Review D. 48, 8, p. 3695-3703Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Four-dimensional dynamically triangulated gravity coupled to matter
Ambjørn, Jan, BURDA, Z., JURKIEWICZ, J. & Kristjansen, Charlotte Fløe, 15 Oct 1993, In: Physical Review D. 48, 8, p. 3695-3703Research output: Contribution to journal › Journal article › Research › peer-review
- Published
From one-matrix model to kontsevich model
Ambjørn, Jan & Kristjansen, Charlotte Fløe, 28 Sep 1993, In: Modern Physics Letters A. 8, 30, p. 2875-2890Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Matrix model calculations beyond the spherical limit
Ambjørn, Jan, Chekhov, L., Kristjansen, Charlotte Fløe & Makeenko, Y., 30 Aug 1993, In: Nuclear Physics B. 404, 1-2, p. 127-172Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Matter fields with c > 1 coupled to 2D gravity
Ambjørn, Jan, Durhuus, Bergfinnur, Jónsson, T. & Thorleifsson, G., 21 Jun 1993, In: Nuclear Physics B. 398, 3, p. 568-592Research output: Contribution to journal › Journal article › Research
- Published
Baby universes in 2D quantum gravity
Ambjørn, Jan, Jain, S. & Thorleifsson, G., 10 Jun 1993, In: Physic Letters B. 307, 1-2, p. 34-39Research output: Contribution to journal › Journal article › Research
- Published
Observing 4D baby universes in quantum gravity
Ambjørn, Jan, Jain, S., Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 13 May 1993, In: Physics Letters B. 305, 3, p. 208-213Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The 3D Ising model represented as random surfaces
Ambjørn, Jan, Sedrakyan, A. & Thorleifsson, G., 15 Apr 1993, In: Physics Letters B. 303, 3-4, p. 327-333Research output: Contribution to journal › Journal article › Research
- Published
Parity breaking at high temperature and density
Ambjørn, Jan, Farakos, K. & Shaposhnikov, M. E., 29 Mar 1993, In: Nuclear Physics B. 393, 3, p. 633-657Research output: Contribution to journal › Journal article › Research
- Published
Quantum gravity, dynamical triangulations and higher-derivative regularization
Ambjørn, Jan, Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 29 Mar 1993, In: Nuclear Physics B. 393, 3, p. 601-629Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The theory of dynamical random surfaces with extrinsic curvature
Ambjørn, Jan, Irbäck, A., Jurkiewicz, J. & Petersson, B., 29 Mar 1993, In: Nuclear Physics B. 393, 3, p. 571-600Research output: Contribution to journal › Journal article › Research
- Published
Nonperturbative 2D quantum gravity and Hamiltonians unbounded from below
Ambjørn, Jan & Kristjansen, Charlotte Fløe, 20 Mar 1993, In: International Journal of Modern Physics A. 8, 7, p. 1259-1281Research output: Contribution to journal › Journal article › Research › peer-review
- Published
3-DIMENSIONAL SIMPLICIAL QUANTUM-GRAVITY COUPLED TO ISING MATTER
Ambjørn, Jan, Burda, Z., Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 1 Mar 1993, In: Nuclear Physics B. Suppl. 30, p. 771-774Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Sphaleron topography
Ambjørn, Jan & Farakos, K., 1 Mar 1993, In: Nuclear physics B, Proceedings supplements. 30, p. 711-714Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Matter Fields with c>1 coupled to 2D gravity
Durhuus, Bergfinnur, Ambjørn, Jan, Jönsson, T. & Thorleifsson, G., 1993, In: Nuclear Physics B. 398, p. 568-592Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Three-dimensional Simplical Quantum Gravity Coupled to Ising Matter
Ambjørn, Jan, Burda, Z., Jurkiewicz, J. & Kristjansen, C., 1993, In: Nucl. Phys. B (Proc.Suppl.). 30, p. 771-774Research output: Contribution to journal › Journal article › Research
- 1992
- Published
3D quantum gravity coupled to matter
Ambjørn, Jan, Burda, Z., Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 31 Dec 1992, In: Physics Letters B. 297, 3-4, p. 253-260Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Topography of the hot sphaleron transitions
Ambjørn, Jan & Farakos, K., 12 Nov 1992, In: Physics Letters B. 294, 2, p. 248-256Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Higher genus correlators for the complex matrix model
Ambjørn, Jan, Kristjansen, Charlotte Fløe & Makeenko, Y., 10 Nov 1992, In: Modern Physics Letters A. 7, 34, p. 3187-3202Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Quantum Gravity represented as Dynamical Triangulations
Ambjørn, Jan, Burad, Z., Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 1 Oct 1992, In: Acta Physica Polonica B. 23, 10, p. 991-1029Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Quantum gravity represented as dynamical triangulations
Ambjørn, Jan, BURDA, Z., JURKIEWICZ, J. & Kristjansen, Charlotte Fløe, Oct 1992, In: Acta Physica Polonica B. 23, 10, p. 991-1030Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Higher genus correlators from the hermitian one-matrix model
Ambjørn, Jan, Chekhov, L. & Makeenko, Y., 28 May 1992, In: Physics Letters B. 282, 3-4, p. 341-348Research output: Contribution to journal › Journal article › Research
- Published
Stochastic quantization vs. KdV flows in two-dimensional quantum gravity
Ambjørn, Jan, Johnson, C. V. & Morris, T. R., 4 May 1992, In: Nuclear Physics B. 374, 3, p. 496-510Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Three-dimensional simplicial quantum gravity
Ambjørn, Jan & Varsted, S., 6 Apr 1992, In: Nuclear Physics B. 373, 2, p. 557-577Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Four-dimensional simplicial quantum gravity
Ambjørn, Jan & Jurkiewicz, J., 19 Mar 1992, In: Physics Letters B. 278, 1-2, p. 42-50Research output: Contribution to journal › Journal article › Research
- Published
The vacuum in three-dimensional simplicial quantum gravity
Ambjørn, Jan, Boulatov, D. V., Krzywicki, A. & Varsted, S., 20 Feb 1992, In: Physics Letters B. 276, 4, p. 432-436Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Critical properties of the dynamical random surface with extrinsic curvature
Ambjørn, Jan, Jurkiewicz, J., Varsted, S., Irback, A. & Petersson, B., 30 Jan 1992, In: Physics Letters B. 275, 3-4, p. 295-303Research output: Contribution to journal › Journal article › Research
- Published
A new approach to three-dimensional quantum gravity..
Ambjørn, Jan & Varsted, S., 1992, Workshop on random surfaces and 2-D quantum gravity, Barcelona, 1991. Amsterdam, p. 25-30Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- Published
Regularized quantum gravity and string theory
Ambjørn, Jan, 1992, Proc. on Random surfaces and 2-D quantum gravity, Barcelona, 1991... Amsterdam, p. 8-24Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- Published
Spontaneous parity breaking in the early universe
Ambjørn, Jan & Farakos, K., 1992, In: Nuclear Physics B. 26, p. 533-535Research output: Contribution to journal › Journal article › Research
- Published
Spontaneous parity breaking of the electroweak theory in the early Universe..
Ambjørn, Jan & Farakos, K., 1992, Workshop on Electroweak symmetry breaking. Singapore, p. 435-441Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 1991
- Published
On spontaneous parity breaking in three-dimensional Gauge- Higgs systems
Ambjørn, Jan, Farakos, K. & Shaposhnikov, M. E., 30 Oct 1991, In: Modern Physics Letters A. 6, 33, p. 3099-3112Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Spiky higher genus strings
Ambjørn, Jan, Bellini, A. & Johnston, D., 7 Sep 1991, In: Modern Physics Letters A. 6, 27, p. 2467-2474Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Entropy estimate in three-dimensional simplical quantum gravity
Ambjørn, Jan & Varsted, J., 29 Aug 1991, In: Physics Letters B. 266, 3-4, p. 285-290Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Sphaleron transitions and Baryon asymmetry: A nummerical, real-time analysis
Ambjørn, Jan, Askgaard, T., Porter, H. & Shaposhnikov, M. E., 15 Apr 1991, In: Nuclear Physics B. 353, 2, p. 346-378Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Dynamical triangulated fermionic surfaces
Ambjørn, Jan & Varsted, S., 28 Mar 1991, In: Physics Letters B. 257, 3-4, p. 305-312Research output: Contribution to journal › Journal article › Research › peer-review
- Published
W-condensate formation in high energy collisions
Ambjørn, Jan & Olesen, Poul, 21 Mar 1991, In: Physics Letters B. 257, 1-2, p. 201-206Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Non-perturbative calculation of correlators in 2D quantum gravity
Ambjørn, Jan & Greensite, J., 17 Jan 1991, In: Physics Letters B. 254, 1-2, p. 66-70Research output: Contribution to journal › Journal article › Research › peer-review
- Published
2D gravity, random surfaces and all that
Ambjørn, Jan, 1991, Lattica 90. Proc.Int.Conf. Lattice Field Theory,Tallahassee, Florida. Amsterdam, p. 701-710Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- Published
Lattice measurement of sphaleron transitions
Ambjørn, Jan, Askgaard, T., Porter, H. & Shaposhnikov, M. E., 1991, Lattice 90. Proc.Int.Conf. on Lattice Field Theory, Tallahassee, Florida. Amsterdam, p. 752-754Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- Published
Three-dimensional simplicial quantum gravity and generalised matrix models
Durhuus, Bergfinnur, Ambjørn, Jan & Jónsson, T., 1991, In: Modern Physics Letters A. 6, 12, p. 1133-1146Research output: Contribution to journal › Journal article › Research › peer-review
- 1990
- Published
Electroweak Magnetism- theory and applications
Ambjørn, Jan & Olesen, Poul, 10 Dec 1990, In: International Journal of Modern Physics A. 5, 23, p. 4525-4557Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Multiloop correlators for two-dimensional quantum gravity
Ambjørn, Jan, Juriekwcz, J. & Makeenko, Y. M., 29 Nov 1990, In: Physics Letters B. 251, 4, p. 517-524Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A non-perturbative definition of 2D quantum gravity by the fifth time action
Ambjørn, Jan, Greensite, J. & Varsted, S., 25 Oct 1990, In: Physics Letters B. 249, 3-4, p. 411-416Research output: Contribution to journal › Journal article › Research › peer-review
- Published
ROPERTIES OF LOOP EQUATIONS FOR THE HERMITIAN MATRIX MODEL AND FOR TWO-DIMENSIONAL QUANTUM GRAVITY
Ambjørn, Jan & Makeenko, Y. M., 10 Sep 1990, In: Modern Physics Letters A. 5, 22, p. 1753-1783Research output: Contribution to journal › Journal article › Research › peer-review
- Published
External field dependence in SU(2) lattice theory
Ambjørn, Jan, Mitrjushkin, V. K. & Zadorozhny, A. M., 16 Aug 1990, In: Physics Letters B. 245, 3-4, p. 575-580Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Lattice simulations of electroweak sphaleron transitions in real time
Ambjørn, Jan, Askgaard, T., Porter, H. & Shaposhnikov, M. E., 26 Jul 1990, In: Physics Letters B. 244, 3-4, p. 479-487Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Summing over all genera for d > 1: a toy model
Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 26 Jul 1990, In: Physics Letters B. 244, 3-4, p. 403-412Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A comment on the nonperturbative d=1 string theory
Ambjørn, Jan, Jurkiewicz, J. & Krzywcki, A., 5 Jul 1990, In: Physics Letters B. 243, 4, p. 373-377Research output: Contribution to journal › Journal article › Research › peer-review
- Published
THE BOSONIC STRING REPRESENTED AS PHI-3 GRAPHS - NEW MONTE-CARLO SIMULATIONS
Ambjørn, Jan, Boulatov, D. & Kazakov, V. A., 5 Jul 1990, In: Modern Physics Letters A. 5, 10, p. 771-785Research output: Contribution to journal › Journal article › Research › peer-review
- Published
ASYMPTOTIC FREEON - AN EXAMPLE OF ELECTROWEAK MAGNETISM
Ambjørn, Jan & Olesen, Poul, 1 Feb 1990, In: Acta Physica Polonica B. 21, 2, p. 109-117Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Computer simulation of the bosonic string
Ambjørn, Jan, 1 Feb 1990, In: Acta Physica Polonica B. 21, 2, p. 101-107Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A random walk representation of the Dirac propagator
Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 29 Jan 1990, In: Nuclear Physics B. 330, 2-3, p. 509-522Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A condensate solution of the electroweak theory which interpolates between the broken and the symmetric phase
Ambjørn, Jan & Olesen, Poul, 22 Jan 1990, In: Nuclear Physics B. 330, 1, p. 193-204Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Asymptotic freon: An example on electroweak magnetism
Ambjørn, Jan & Olesen, Poul, 1990, In: Acta Physica Polonica B. 21, 2, p. 109-117Research output: Contribution to journal › Journal article › Research › peer-review
- Published
External field dependence in the SU(2) lattice theory
Ambjørn, Jan, Mitrjushkin, V. K. & Zadorozhny, A. M., 1990, In: Physics Letters B. 245, p. 575-580Research output: Contribution to journal › Journal article › Research › peer-review
- Published
New Monte Carlo simulations
Ambjørn, Jan, Boulatov, F. & Kazakov, V. A., 1990, In: Modern Physics Letters A. 5, p. 771-785Research output: Contribution to journal › Journal article › Research › peer-review
- 1989
- Published
Fermionized spin systems and the boson-fermion mapping in (2+1)-dimensional gauge theory
Ambjørn, Jan & Semenoff, G. W., 3 Aug 1989, In: Physics Letters B. 226, 1-2, p. 107-112Research output: Contribution to journal › Journal article › Research › peer-review
- Published
SU(2) lattice gauge theory with an external field
Ambjørn, Jan, Mitrjushkin, V. K., Bornyakov, V. G. & Zadorozhny, A. M., 13 Jul 1989, In: Physics Letters B. 225, 1-2, p. 153-158Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Kinematical numerical study of the crumpling transition in crystalline surfaces
Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 17 Apr 1989, In: Nuclear Physics B. 316, 3, p. 526-558Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Errata: J. Ambjørn and P. Olesen, A magnetic condensate solution of the classical electroweak theory, Phys. Lett. B 218 (1989) 67.
Ambjørn, Jan, 13 Apr 1989, In: Physics Letters B. 220, 4, p. 659 1 p.Research output: Contribution to journal › Comment/debate › Research › peer-review
- Published
Baryon asymmetry generation in the electroweak theory: A lattice study
Ambjørn, Jan, Laursen, M. L. & Shaposhnikov, M. E., 10 Apr 1989, In: Nuclear Physics B. 316, 2, p. 483-508Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A renormalization group analysis of lattice models of two-dimensional membranes
Ambjørn, Jan, Durhuus, Bergfinnur, Frohlich, J. & Jonsson, T., 1 Apr 1989, In: Journal of Statistical Physics. 55, 1-2, p. 29-85Research output: Contribution to journal › Journal article › Research › peer-review
- Published
TRIANGULATED RANDOM SURFACES AS A REPRESENTATION OF NON-CRITICAL STRINGS
Ambjørn, Jan, 1 Apr 1989, In: Acta Physica Polonica B. 20, 4, p. 313-320Research output: Contribution to journal › Journal article › Research › peer-review
- Published
On electroweak magnetism
Ambjørn, Jan & Olesen, Poul, 27 Mar 1989, In: Nuclear Physics B. 315, 3, p. 606-614Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A magnetic condensate solution of the classical electroweak theory
Ambjørn, Jan & Olesen, Poul, 9 Feb 1989, In: Physics Letters B. 218, 1, p. 67-71Research output: Contribution to journal › Journal article › Research › peer-review
- 1988
- Published
Superconducting cosmic strings and W condensation
Ambjørn, Jan, Nielsen, N. K. & Olesen, Poul, 12 Dec 1988, In: Nuclear Physics B. 310, 3-4, p. 625-635Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Anti-screening of large magnetic fields by vector bosons
Ambjørn, Jan & Olesen, Poul, 1 Dec 1988, In: Physics Letters B. 214, 4, p. 565-589Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Statistical mechanics of paths with curvature-dependent action
Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 21 Feb 1988, In: Journal of Physics A: Mathematical and Theoretical. 21, 4, p. 981-1000Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Strings, Fields and Critical Phenomena
Ambjørn, Jan, 10 Jan 1988, In: Fortschritte der Physik. 36, 8, p. 595-642Research output: Contribution to journal › Journal article › Research › peer-review
- 1987
- Published
Regularized strings with extrinsic curvature
Ambjørn, Jan, Durhuus, Bergfinnur, Frohlich, J. & Jonsson, T., 28 Dec 1987, In: Nuclear Physics B. 290, 4, p. 480-506Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Monte Carlo simulations of regularized bosonic strings
Ambjørn, Jan, De Forcrand, P., Koukiou, F. & Petritis, D., 5 Nov 1987, In: Physics Letters B. 197, 4, p. 548-552Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Baryon asymmetry of the universe. A Monte Carlo study on the lattice
Ambjørn, Jan, Laursen, M. & Shaposhnkov, M. E., 22 Oct 1987, In: Physics Letters B. 197, 1-2, p. 49-54Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Scaling of the string tension in a new class of regularized string theories
Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 22 Jun 1987, In: Physical Review Letters. 58, 25, p. 2619-2622Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Random Paths with Curvature-Dependent Action
Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 15 May 1987, In: EPL. 3, 10, p. 1059-1065Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Regularized bosonic strings need extrinsic curvature
Ambjørn, Jan & Durhuus, Bergfinnur, 9 Apr 1987, In: Physics Letters B. 188, 2, p. 253-257Research output: Contribution to journal › Journal article › Research › peer-review
- 1986
- Published
The complex langevin equation and Monte Carlo simulations of actions with static charges
Ambjørn, Jan, Flensburg, M. & Peterson, C., 24 Nov 1986, In: Nuclear Physics B. 275, 3, p. 375-397Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The appearance of critical dimensions in regulated string theories (II)
Ambjørn, Jan, Durhuus, Bergfinnur & Frohlich, J., 27 Oct 1986, In: Nuclear Physics B. 275, 2, p. 161-184Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The SU(2) chiral model in an external field: A complex stochastic process on a non-abelian group
Ambjørn, Jan & Yang, S. K., 29 Sep 1986, In: Nuclear Physics B. 275, 1, p. 18-38Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The appearance of critical dimensions in regulated string theories
Ambjørn, Jan, Durhuus, Bergfinnur, Frohlich, J. & Orland, P., 26 Jul 1986, In: Nuclear Physics B. 270, 3, p. 457-482Research output: Contribution to journal › Journal article › Research › peer-review
- 1985
- Published
Numerical problems in applying the langevin equation to complex effective actions
Ambjørn, Jan & Yang, S., 19 Dec 1985, In: Physics Letters B. 165, 1-3, p. 140-146Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Langevin simulations of configurations with static charges
Ambjørn, Jan, Flensburg, M. & Peterson, C., 26 Sep 1985, In: Physics Letters B. 159, 4-6, p. 335-340Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Periodic skyrme solitons
Zahed , I., Wirzba, A., Meissner, U. G., Pethick, C. J. & Ambjørn, Jan, 5 Mar 1985, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 31, 5, p. 1114-1118Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Classical versus semiclassical electroweak decay of a techniskyrmion
Ambjørn, Jan & Rubakov, V. A., 20 Jan 1985, In: Nuclear Physics B. 256, 3, p. 434-448Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Diseases of triangulated random surface models, and possible cures
Ambjørn, Jan, Durhuus, Bergfinnur & Frohlich, J., 16 Jan 1985, In: Nuclear Physics B. 257, 3, p. 433-449Research output: Contribution to journal › Journal article › Research › peer-review
- 1984
- Published
Stochastic confinement and dimensional reduction (II). Three-dimensional SU(2) lattice gauge theory
Ambjørn, Jan, Olesen, Poul & Peterson, C., 20 Nov 1984, In: Nuclear Physics B. 240, 4, p. 533-542Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Three-dimensional lattice gauge theory and strings
Ambjørn, Jan, Olesen, Poul & Peterson, C., 24 Sep 1984, In: Nuclear Physics B. 244, 1, p. 262-276Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Stochastic confinement and dimensional reduction: (I). Four-dimensional SU(2) lattice gauge theory
Ambjørn, Jan, Olesen, Poul & Peterson, C., 10 Sep 1984, In: Nuclear Physics B. 240, 2, p. 189-212Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Observation of a string in three-dimensional SU(2) lattice gauge theory
Ambjørn, Jan, Olesen, Poul & Peterson, C., 2 Aug 1984, In: Physics Letters B. 142, 5-6, p. 410-414Research output: Contribution to journal › Journal article › Research › peer-review
- 1983
- Published
Reduced lattice gauge theory in two dimensions
Ambjørn, Jan, Durhuus, Bergfinnur & Olesen, Poul, 13 Oct 1983, In: Physics Letters B. 130, 1-2, p. 93-97Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Action principle of Bogoliubov coefficients
Ambjørn, Jan, Hughes, R. J. & Nielsen, N. K., 1 Oct 1983, In: Annals of Physics. 150, 1, p. 92-113Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Properties of the vacuum. 2. Electrodynamic
Ambjørn, Jan & Wolfram, S., 15 Aug 1983, In: Annals of Physics. 147, 1, p. 33-56Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Properties of the vacuum. I. Mechanical and thermodynamic
Ambjørn, Jan & Wolfram, S., 15 Aug 1983, In: Annals of Physics. 147, 1, p. 1-32Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The axial anomaly and the lattice Dirac sea
Ambjørn, Jan, Greensite, J. & Peterson, C., 11 Jul 1983, In: Nuclear Physics B. 221, 2, p. 381-408Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Gauge fields, BRS symmetry and the Casimir effect
Ambjørn, Jan & Hughes, R. J., 23 May 1983, In: Nuclear Physics B. 217, 2, p. 336-348Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Canonical quantisation in non-Abelian background fields
Ambjørn, Jan & Hughes, R. J., 2 Feb 1983, In: Annals of Physics. 145, 2, p. 340-377Research output: Contribution to journal › Journal article › Research › peer-review
- 1982
- Published
String tensions for lattice gauge theories in 2 + 1 dimensions
Ambjørn, Jan, Hey, A. & Otto, S., 25 Oct 1982, In: Nuclear Physics B. 210, 3, p. 347-368Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Particle creation in colour-electric fields
Ambjørn, Jan & Hughes, R. J., 24 Jun 1982, In: Physics Letters B. 113, 4, p. 305-310Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Källen's theorem and the unphysical nature of abelian external fields in Yang-Mills theory
Ambjørn, Jan & Hughes, R. J., 29 Mar 1982, In: Nuclear Physics B. 197, 1, p. 113-131Research output: Contribution to journal › Journal article › Research › peer-review
- 1981
- Published
RESOLVING THE ON-SHELL AND OFF-SHELL AMBIGUITY OF PERTURBATIVE QCD USING SUM-RULES
Ambjørn, Jan & Sakain, N., 5 Jan 1981, In: Zeitschrift fur Physik C-Particles and Fields. 8, 3, p. 221-231Research output: Contribution to journal › Journal article › Research › peer-review
- 1980
- Published
T Hooft's non-Abelian magnetic flux has zero classical energy
Ambjørn, Jan & Flyvbjerg, H., 1 Dec 1980, In: Physics Letters B. 97, 2, p. 241-245Research output: Contribution to journal › Journal article › Research › peer-review
- Published
THE EFFECTIVE POTENTIAL AND THE BOUND-STATES FOR A CLASS OF 2 DIMENSIONAL GAUGE-THEORIES
Ambjørn, Jan, 1 Dec 1980, In: Zeitschrift fur Physik C-Particles and Fields. 5, 1, p. 37-42Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Kinematics of periodic structures in SU(N) gauge theories
Ambjørn, Jan, Felsager, B. & Olesen, Poul, 24 Nov 1980, In: Nuclear Physics B. 175, 2, p. 349-364Research output: Contribution to journal › Journal article › Research › peer-review
- Published
A color magnetic vortex condensate in QCD
Ambjørn, Jan & Olesen, Poul, 20 Oct 1980, In: Nuclear Physics B. 170, 2, p. 265-282Research output: Contribution to journal › Journal article › Research › peer-review
- Published
On the formation of a random color magnetic quantum liquid in QCD
Ambjørn, Jan & Olesen, Poul, 11 Aug 1980, In: Nuclear Physics B. 170, 1, p. 60-78Research output: Contribution to journal › Journal article › Research › peer-review
ID: 5868
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Signature change of the metric in CDT quantum gravity?
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A model for emergence of space and time
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String theory as a Lilliputian world
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