期刊
PHYSICS LETTERS B
卷 690, 期 4, 页码 413-419出版社
ELSEVIER
DOI: 10.1016/j.physletb.2010.05.054
关键词
Quantum gravity; Horava-Lifshitz gravity; Causal dynamical triangulation; Fractal dimensions; Monte Carlo simulations
资金
- Polish Science Foundation
- European Regional Development [MPD/2009/6]
- Netherlands Organisation for Scientific Research (NWO)
- Foundation for Fundamental Research on Matter (FOM)
- Polish Ministry of Science [N N202 034236, N N202 229137]
The theory of causal dynamical triangulations (CDT) attempts to define a nonperturbative theory of quantum gravity as a sum over spacetime geometries. One of the ingredients of the CDT framework is a global time foliation, which also plays a central role in the quantum gravity theory recently formulated by Horava. We show that the phase diagram of CDT bears a striking resemblance with the generic Lifshitz phase diagram appealed to by Horava. We argue that CDT might provide a unifying nonperturbative framework for anisotropic as well as isotropic theories of quantum gravity. (C) 2010 Elsevier B.V. All rights reserved.
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