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  Bouncing cosmologies from quantum gravity condensates

Oriti, D., Sindoni, L., & Wilson-Ewing, E. (2017). Bouncing cosmologies from quantum gravity condensates. Classical and Quantum Gravity, 34(4): 04LT01. doi:10.1088/1361-6382/aa549a.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-1824-A Version Permalink: http://hdl.handle.net/21.11116/0000-0002-F98E-6
Genre: Journal Article

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1602.08271.pdf (Preprint), 120KB
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 Creators:
Oriti, Daniele1, Author              
Sindoni, Lorenzo1, Author              
Wilson-Ewing, Edward2, Author              
Affiliations:
1Microscopic Quantum Structure & Dynamics of Spacetime, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_67201              
2Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc,High Energy Physics - Theory, hep-th
 Abstract: We show how the large-scale cosmological dynamics can be obtained from the hydrodynamics of isotropic group field theory condensate states in the Gross-Pitaevskii approximation. The correct Friedmann equations are recovered in the semi-classical limit for some choices of the parameters in the action for the group field theory, and quantum gravity corrections arise in the high-curvature regime causing a bounce which generically resolves the big-bang and big-crunch singularities.

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 Dates: 2016-02-262016-03-0820162017
 Publication Status: Published in print
 Pages: 4 pages, v2: Typos corrected
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 Identifiers: arXiv: 1602.08271
URI: http://arxiv.org/abs/1602.08271
DOI: 10.1088/1361-6382/aa549a
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Title: Classical and Quantum Gravity
Source Genre: Journal
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Pages: - Volume / Issue: 34 (4) Sequence Number: 04LT01 Start / End Page: - Identifier: -