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  A new perspective on matter coupling in two-dimensional gravity.

Ambjörn, J., Anagnostopoulos, K. N., & Loll, R. (1999). A new perspective on matter coupling in two-dimensional gravity. Physical Review D, 60(10): 104035. doi:10.1103/PhysRevD.60.104035.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-581F-8 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-5820-2
Genre: Journal Article

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9904012v1.pdf (Preprint), 313KB
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206118.pdf (Publisher version), 158KB
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 Creators:
Ambjörn, Jan, Author
Anagnostopoulos, K. N., Author
Loll, Renate1, Author
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24014              

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 Abstract: We provide compelling evidence that a previously introduced model of nonperturbative 2D Lorentzian quantum gravity exhibits (two-dimensional) flat-space behavior when coupled to Ising spins. The evidence comes from both a high-temperature expansion and from Monte Carlo simulations of the combined gravity-matter system. This weak-coupling behavior lends further support to the conclusion that the Lorentzian model is a genuine alternative to Liouville quantum gravity in two dimensions, with a different and much “smoother” critical behavior.

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 Dates: 1999-10-26
 Publication Status: Published in print
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 Identifiers: eDoc: 206118
Other: arXiv:hep-th/9904012v1
DOI: 10.1103/PhysRevD.60.104035
URI: http://link.aps.org/doi/10.1103/PhysRevD.60.104035
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Title: Physical Review D
Source Genre: Journal
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Pages: - Volume / Issue: 60 (10) Sequence Number: 104035 Start / End Page: - Identifier: -