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キーワード:
General Relativity and Quantum Cosmology, gr-qc,High Energy Physics - Theory, hep-th
要旨:
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.