Universality of black hole thermodynamics beyond the thermal approximation

Title

Universality of black hole thermodynamics beyond the thermal approximation

Creator

Corda, Christian; Cafaro, Carlo

Description

Mathur and Mehta were awarded the third prize in the 2023 Gravity Research Foundation Essay Competition for their work demonstrating the universality of black hole (BH) thermodynamics. Their research established that any Extremely Compact Object (ECO) exhibits the same thermodynamic properties as a BH, irrespective of the presence of an event horizon. This significant finding was derived under the assumption that the BH emission spectrum behaves thermally. However, compelling arguments rooted in energy conservation and the BH back reaction indicate that the spectrum of Hawking radiation cannot be perfectly thermal. In this paper, we explore the extension of Mathur and Mehtas findings to scenarios where the radiation spectrum deviates from exact thermal behavior, utilizing the concept of the BH dynamical state. 2025 World Scientific Publishing Company.

Source

International Journal of Modern Physics D;Volume;34;Issue;16;Article No.;2544016;

Date

01-01-2025

Publisher

World Scientific

Subject

black hole evaporation; black hole thermodynamics; Physics of black holes; quantum aspects of black holes

Coverage

Corda C., Department of Mathematics and Physics, SUNY Polytechnic Institute, Utica, 13502, NY, United States, Department of Physics and Electronics, Christ University, Karnataka, Bengaluru, 560029, India; Cafaro C., Department of Nanoscale Science and Engineering, University at Albany-SUNY, Albany, 12222, NY, United States

Rights

Restricted Access; Hardcopy may be available in the library

Relation

ISSN: 2182718;

Format

online

Language

English

Type

Article

Identifier

https://doi.org/10.1142/S021827182544016X

https://www.scopus.com/pages/publications/105015439827?origin=resultslist