Jan Ambjørn

Jan Ambjørn

Professor, emeritus


  1. Published

    Generalized penner models to all genera

    Ambjørn, Jan, Kristjansen, Charlotte Fløe & Makeenko, Y., 15 Oct 1994, In: Physical Review D. 50, 8, p. 5193-5203

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Published

    Geodesic distances in Liouville quantum gravity

    Ambjørn, Jan & Budd, T. G., 1 Dec 2014, In: Nuclear Physics, Section B. 889, p. 676-691

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. 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. 713-719

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. 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 journalJournal articleResearchpeer-review

  5. 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. 069

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. 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. 069

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. 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. 3187-3202

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. 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. 341-348

    Research output: Contribution to journalJournal articleResearch

  9. 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 journalJournal articleResearchpeer-review

  10. Published

    Improved determination of the classical sphaleron transition rate

    Ambjørn, Jan & Krasnitz, A., 24 Nov 1997, In: Nuclear Physics B. 506, 1-2, p. 387-403

    Research output: Contribution to journalJournal articleResearch

  11. 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. 5887-5900

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. 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. 189-196

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. 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. 748-750

    Research output: Contribution to journalJournal articleResearch

  14. Published

    Intrinsic geometry of c = 1 random surfaces

    Ambjørn, Jan & Jurkiewicz, J., 1 Apr 1995, In: Nuclear Physics B. Suppl. 42, p. 701-703

    Research output: Contribution to journalJournal articleResearch

  15. 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 journalJournal articleResearchpeer-review

  16. 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. 526-558

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. 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. 349-364

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. 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. 113-131

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. 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. 335-340

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. 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. 013

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. 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. 023

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. 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. 752-754

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  23. 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. 479-487

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. 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. 39-66

    Research output: Contribution to journalJournal articleResearch

  25. 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. 022

    Research output: Contribution to journalJournal articleResearchpeer-review

  26. 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. 241-244

    Research output: Contribution to journalConference articleResearchpeer-review

  27. 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. 127-172

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. 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 journalJournal articleResearchpeer-review

  29. 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. 568-592

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. 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. 568-592

    Research output: Contribution to journalJournal articleResearch

  31. 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 journalLetterResearchpeer-review

  32. 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 journalJournal articleResearchpeer-review

  33. 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. 548-552

    Research output: Contribution to journalJournal articleResearchpeer-review

  34. 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. 011

    Research output: Contribution to journalJournal articleResearchpeer-review

  35. 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. 517-524

    Research output: Contribution to journalJournal articleResearchpeer-review

  36. Published

    New Monte Carlo simulations

    Ambjørn, Jan, Boulatov, F. & Kazakov, V. A., 1990, In: Modern Physics Letters A. 5, p. 771-785

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. 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 journalConference articleResearchpeer-review

  38. 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. 187-204

    Research output: Contribution to journalJournal articleResearch

  39. 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 journalJournal articleResearchpeer-review

  40. 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. 109-114

    Research output: Contribution to journalJournal articleResearchpeer-review

  41. 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. 104035

    Research output: Contribution to journalJournal articleResearchpeer-review

  42. Published

    New universal spectral correlators

    Akemann, G. & Ambjørn, Jan, 21 Nov 1996, In: Journal of Physics A: Mathematical and Theoretical. 29, 22, p. L555-L560

    Research output: Contribution to journalJournal articleResearchpeer-review

  43. 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. 1241-1266

    Research output: Contribution to journalJournal articleResearch

  44. 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. 407-434

    Research output: Contribution to journalJournal articleResearchpeer-review

  45. 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. 66-70

    Research output: Contribution to journalJournal articleResearchpeer-review

  46. 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. 035010

    Research output: Contribution to journalJournal articleResearchpeer-review

  47. 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. 4257-4289

    Research output: Contribution to journalJournal articleResearch

  48. 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. 4257-4289

    Research output: Contribution to journalJournal articleResearchpeer-review

  49. Published

    Nonpertubative Dynamics of Noncommutative Gauge Theory

    Ambjørn, Jan, Nishimura, J., Szabo, R. J. & Makeenko, Y. M., 2000, In: Phys. Lett.. B480, p. 399

    Research output: Contribution to journalJournal articleResearchpeer-review

  50. 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. 063544

    Research output: Contribution to journalJournal articleResearchpeer-review

ID: 5868