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  Thermal representations in group field theory: squeezed vacua and quantum gravity condensates

Assanioussi, M., & Kotecha, I. (2020). Thermal representations in group field theory: squeezed vacua and quantum gravity condensates. Journal of High Energy Physics, 2020(2): 173. doi:10.1007/JHEP02(2020)173.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0004-E323-4 Version Permalink: https://hdl.handle.net/21.11116/0000-0005-EA37-6
Genre: Journal Article

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 Creators:
Assanioussi, Mehdi, Author
Kotecha, Isha1, Author           
Affiliations:
1Quantum 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,Quantum Physics, quant-ph
 Abstract: We apply the formalism of thermofield dynamics to group field theory quantum
gravity and construct thermal representations associated with generalised
equilibrium Gibbs states using Bogoliubov transformations. The newly
constructed class of thermal vacua are entangled, two-mode squeezed,
thermofield double states. The corresponding finite temperature representations
are inequivalent to the standard zero temperature one based on a degenerate
vacuum. An interesting class of states, coherent thermal states, are defined
and understood as thermal quantum gravity condensates.

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 Dates: 2019-10-152020
 Publication Status: Issued
 Pages: 10 pages
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 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 1910.06889
URI: http://arxiv.org/abs/1910.06889
DOI: 10.1007/JHEP02(2020)173
 Degree: -

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Title: Journal of High Energy Physics
Source Genre: Journal
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Pages: - Volume / Issue: 2020 (2) Sequence Number: 173 Start / End Page: - Identifier: -