Jan Ambjørn

Jan Ambjørn

Professor, emeritus


  1. Published

    Sphaleron-like transitions at high temperature

    Ambjørn, Jan, 1995, Proc. of NATO Advanced Research Workshop on Electroweak Physics and the Early Universe. p. 271-286

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

  2. 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. 346-378

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Quantum Geometry, a statistical field theory approach

    Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 1997, Monographs in Matematical Physics. p. 371

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

  4. 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. 742-744

    Research output: Contribution to journalJournal articleResearch

  5. Published

    2D gravity, random surfaces and all that

    Ambjørn, Jan, 1991, Lattica 90. Proc.Int.Conf. Lattice Field Theory,Tallahassee, Florida. Amsterdam, p. 701-710

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

  6. Published

    Dynamical triangulated fermionic surfaces

    Ambjørn, Jan & Varsted, S., 28 Mar 1991, In: Physics Letters B. 257, 3-4, p. 305-312

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. 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. 771-774

    Research output: Contribution to journalJournal articleResearch

  8. 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. 2527-2533

    Research output: Contribution to journalJournal articleResearch

  9. Published

    Barriers in Quantum Gravity

    Ambjørn, Jan, 1994, String Theory, Gauge Theory and Quantum Gravity 93. Singapore: World Scientific, p. 228-238

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

  10. Published

    Two-Dimensional Quantum Geometry

    Ambjørn, Jan, Nielsen, J. L. & Rolf, J., 1999, In: Fortschr. Phys.. Vol. 47, p. 152-171

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. 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. 7397-7406

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. 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

  13. Published

    Spontaneous parity breaking in the early universe

    Ambjørn, Jan & Farakos, K., 1992, In: Nuclear Physics B. 26, p. 533-535

    Research output: Contribution to journalJournal articleResearch

  14. Published

    Regularized quantum gravity and string theory

    Ambjørn, Jan, 1992, Proc. on Random surfaces and 2-D quantum gravity, Barcelona, 1991... Amsterdam, p. 8-24

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

  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

    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. 25-30

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

  17. Published

    Two obstacles in quantum gravity

    Ambjørn, Jan, 1995, Proc. of the conference "Strings '93". p. 387-396

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

  18. 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

  19. 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. 4667-4688

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Quantum Geometry

    Ambjørn, Jan, 1999, Geometry in Present Day Science. p. 1-20

    Research output: Chapter in Book/Report/Conference proceedingReport chapterCommunication

  21. 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 journalJournal articleResearchpeer-review

  22. Published

    Asymptotic freon: An example on electroweak magnetism

    Ambjørn, Jan & Olesen, Poul, 1990, In: Acta Physica Polonica B. 21, 2, p. 109-117

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. 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

  24. 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. 1221-1228

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    Problems in Quantum Gravity

    Ambjørn, Jan, 1994, Proceedings of the Workshop on Strings, Topological Field Theory and Matrix Models. Moscow, p. 241-250

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

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