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gr-qc2024
The Tolman-Ehrenfest criterion of thermal equilibrium in scalar-tensor gravity
Numa Karolinski, Valerio Faraoni
The Tolman-Ehrenfest criterion for the thermal equilibrium of a fluid at rest in a static general-relativistic geometry is generalized to scalar-tensor gravity. Surprisingly, the g…
gr-qc2024
Einstein gravity as the thermal equilibrium state of a nonminimally coupled scalar field geometry
Numa Karolinski, Valerio Faraoni
We test ideas of the recently proposed first-order thermodynamics of scalar-tensor gravity using an exact geometry sourced by a conformally coupled scalar field. We report a non-mo…