Scalar field as a perfect fluid: thermodynamics of minimally coupled scalars and Einstein frame scalar-tensor gravity
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2023-01
Publication Type
Journal Article
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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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published
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83 (1)
Pages / Article No.
24
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Springer
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895648 - Cosmological Dark Energy Condensate (CosmoDEC): A unified description of the Dark Universe (EC)