RT Journal Article
T1 Black hole thermodynamics probes the equivalence principle
A1 Alonso Serrano, Ana
A1 Garay Elizondo, Luis Javier
A1 Liška, Marek
AB The equivalence principle for test gravitational physics strongly constrains dynamics of spacetime, providing a powerful criterion for selecting candidate theories of gravity. However, checking its validity for a particular theory is often a very difficult task. We devise here a simple theoretical criterion for identifying equivalence principle violations in black hole thermodynamics. By employing this criterion, we prove that Lanczos-Lovelock gravity violates the strong equivalence principle, leaving general relativity as the only local, diffeomorphism-invariant theory compatible with it. However, we also show that certain nonlocal expressions for black hole entropy appear to obey the strong equivalence principle.
PB World Scientific Publishing
SN 0218-2718
YR 2025
FD 2025
LK https://hdl.handle.net/20.500.14352/128893
UL https://hdl.handle.net/20.500.14352/128893
LA eng
NO Ana Alonso-Serrano (†Institut fr Physik, Humboldt-Universitt zu Berlin, Zum Groen Windkanal 6, 12489 Berlin, Germany‡Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut), Am Mühlenberg 1, 14476 Potsdam, Germany), Luis J. Garay (§Departamento de Física Teórica and IPARCOS, Universidad Complutense de Madrid, 28040 Madrid, Spain), and Marek Liška (School of Theoretical Physics, Dublin Institute for Advanced Studies, 10 Burlington Road, Dublin 4, Ireland) International Journal of Modern Physics D 2025 34:16
NO © World Scientific Publishing CompanyThis essay received an Honorable Mention in the 2025 Essay Competition of the Gravity Research Foundation
NO German Research Foundation
NO Ministerio de Innovación y Ciencia (España)
NO Agencia Estatal de Investigación (España)
NO European Commission
DS Docta Complutense
RD 16 dic 2025