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arxiv: 2206.02046 · v1 · pith:7PQZEQWSnew · submitted 2022-06-04 · 🌀 gr-qc

Peculiar thermal states in the first-order thermodynamics of gravity

Valerio Faraoni , Andrea Giusti , Sonia Jose , Serena Giardino This is my paper
classification 🌀 gr-qc
keywords gravityfirst-orderscalarstatesthermodynamicsbrans-dickecontainscontext
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In the context of the recently proposed first-order thermodynamics of scalar-tensor gravity, we discuss the possibility of zero-temperature states of equilibrium other than Einstein gravity, including pathological Brans-Dicke theory, Palatini $f(R)$ gravity, and cuscuton gravity, all with non-dynamical scalar fields. The formalism is extended to Nordstr\"om gravity, which contains only a scalar degree of freedom and has negative temperature relative to general relativity.

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