Academic Journal
Dynamical Black Hole Entropy in Effective Field Theory.
| Title: | Dynamical Black Hole Entropy in Effective Field Theory. |
|---|---|
| Authors: | Davies, Iain, Reall, Harvey S. |
| Superior Title: | Journal of High Energy Physics; May2023, Vol. 2023 Issue 5, p1-37, 37p |
| Subject Terms: | GAUGE invariance, GRAVITATIONAL fields, ENTROPY, MEAN field theory, GRAVITY, OPEN-ended questions, BLACK holes |
| Abstract: | In recent work, Hollands, Kovács and Reall have built on previous work of Wall to provide a definition of dynamical black hole entropy for gravitational effective field theories (EFTs). This entropy satisfies a second law of black hole mechanics to quadratic order in perturbations around a stationary black hole. We determine the explicit form of this entropy for the EFT of 4d vacuum gravity including terms in the action with up to 6 derivatives. An open question concerns the gauge invariance of this definition of black hole entropy. We show that gauge invariance holds for the EFT of vacuum gravity with up to 6 derivatives but demonstrate that it can fail when 8 derivative terms are included. We determine an entropy for Einstein-Gauss-Bonnet theory by treating it as an EFT with vanishing 6 derivative terms. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of High Energy Physics is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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