https://doi.org/10.1140/epjc/s10052-023-11697-3
Regular Article - Theoretical Physics
Thermal stability of stealth and de Sitter spacetimes in scalar-tensor gravity
1
Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Callinstraße 38, 30167, Hannover, Germany
2
Institute for Theoretical Physics, Heidelberg University, Philosophenweg 16, 69120, Heidelberg, Germany
3
Institute for Theoretical Physics, ETH Zurich, Wolfgang-Pauli-Strasse 27, 8093, Zurich, Switzerland
4
Department of Physics and Astronomy, Bishop’s University, 2600 College Street, J1M 1Z7, Sherbrooke, QC, Canada
Received:
19
April
2023
Accepted:
7
June
2023
Published online:
15
July
2023
Stealth solutions of scalar-tensor gravity and less-known de Sitter spaces that generalize them are analyzed regarding their possible role as thermal equilibria at non-zero temperature in the new first-order thermodynamics of scalar-tensor gravity. No stable equilibria are found, further validating the special role of general relativity as an equilibrium state in the landscape of gravity theories, seen through the lens of first-order thermodynamics.
© The Author(s) 2023
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