On the phase diagram of 2d Lorentzian quantum gravity.

Ambjörn, Jan; Anagnostopoulos, K. N.; Loll, Renate

doi:10.1016/S0920-5632(00)91790-0

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On the phase diagram of 2d Lorentzian quantum gravity.

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Loll, Renate
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Nuclear-Physics-B---Proceedings-Supplements_83-84.pdf
(Publisher version), 212KB

9908054v1.pdf
(Preprint), 217KB

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Citation

Ambjörn, J., Anagnostopoulos, K. N., & Loll, R. (2000). On the phase diagram of 2d Lorentzian quantum gravity. Nuclear Physics B - Proceedings Supplements, 83-84, 733-735. doi:10.1016/S0920-5632(00)91790-0.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-572B-3

Abstract

The phase diagram of 2d Lorentzian quantum gravity (LQG) coupled to conformal matter is studied. A phase transition is observed at $c=c_{\rm crit}$ ($1/2<c_{\rm crit}<4$) which can be thought of as the analogue of the $c=1$ barrier of Euclidean quantum gravity (EQG). The non--trivial properties of the quantum geometry are discussed.