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  Scalar field as a perfect fluid: thermodynamics of minimally coupled scalars and Einstein frame scalar-tensor gravity

Faraoni, V., Giardino, S., Giusti, A., & Vanderwee, R. (2023). Scalar field as a perfect fluid: thermodynamics of minimally coupled scalars and Einstein frame scalar-tensor gravity. European Physical Journal C, 83(1): 24. doi:10.1140/epjc/s10052-023-11186-7.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000A-EF46-B Version Permalink: https://hdl.handle.net/21.11116/0000-000C-B8F7-E
Genre: Journal Article

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 Creators:
Faraoni, Valerio, Author
Giardino, Serena1, Author           
Giusti, Andrea, Author
Vanderwee, Robert, Author
Affiliations:
1Lise Meitner Excellence Group: Gravitational Theory and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_3235822              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc,High Energy Physics - Theory, hep-th
 Abstract: We revisit the analogy between a minimally coupled scalar field in general
relativity and a perfect fluid, correcting previous identifications of
effective temperature and chemical potential. This provides a useful
complementary picture for the first-order thermodynamics of scalar-tensor
gravity, paving the way for the Einstein frame formulation (which eluded
previous attempts) and raises interesting questions to further develop the
analogy.

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 Dates: 2022-08-082023
 Publication Status: Issued
 Pages: 19 pages, latex
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 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 2208.04051
DOI: 10.1140/epjc/s10052-023-11186-7
 Degree: -

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Title: European Physical Journal C
Source Genre: Journal
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Pages: - Volume / Issue: 83 (1) Sequence Number: 24 Start / End Page: - Identifier: -