Bibliographic Details
| 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] |
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| Database: |
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