Jan Ambjørn
Professor, emeritus
Theoretical high energy, astroparticle and gravitational physics
Blegdamsvej 17
2100 København Ø
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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
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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
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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
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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
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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
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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
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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
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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
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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
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Three-dimensional lattice gauge theory and strings
Ambjørn, Jan, Olesen, P. & Peterson, C., 24 Sep 1984, In: Nuclear Physics B. 244, 1, p. 262-276Research output: Contribution to journal › Journal article › Research › peer-review
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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
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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
ID: 5868
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Signature change of the metric in CDT quantum gravity?
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257
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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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