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  Discrete Lorentzian Quantum Gravity

Loll, R. (2001). Discrete Lorentzian Quantum Gravity. Nuclear Physics B - Proceedings Supplements, 94, 96-107.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-55FF-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-5600-9
Genre: Conference Paper

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 Creators:
Loll, Renate1, Author
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1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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 Abstract: Just as for non-abelian gauge theories at strong coupling, discrete lattice methods are a natural tool in the study of non-perturbative quantum gravity. They have to reflect the fact that the geometric degrees of freedom are dynamical, and that therefore also the lattice theory must be formulated in a background-independent way. After summarizing the status quo of discrete covariant lattice models for four-dimensional quantum gravity, I describe a new class of discrete gravity models whose starting point is a path integral over Lorentzian (rather than Euclidean) space-time geometries. A number of interesting and unexpected results that have been obtained for these dynamically triangulated models in two and three dimensions make discrete Lorentzian gravity a promising candidate for a non-trivial theory of quantum gravity.

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Language(s): eng - English
 Dates: 2001
 Publication Status: Published in print
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 Identifiers: eDoc: 3355
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Title: 18th International Symposium on Lattice Field Theory Lattice 2000
Place of Event: Bangalore
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Title: Nuclear Physics B - Proceedings Supplements
Source Genre: Journal
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Pages: - Volume / Issue: 94 Sequence Number: - Start / End Page: 96 - 107 Identifier: -