Dynamic black-hole entropy
广义相对论与量子宇宙学
2010-05-12 v1
摘要
We consider two non-statistical definitions of entropy for dynamic (non-stationary) black holes in spherical symmetry. The first is analogous to the original Clausius definition of thermodynamic entropy: there is a first law containing an energy-supply term which equals surface gravity times a total differential. The second is Wald's Noether-charge method, adapted to dynamic black holes by using the Kodama flow. Both definitions give the same answer for Einstein gravity: one-quarter the area of the trapping horizon.
引用
@article{arxiv.gr-qc/9810006,
title = {Dynamic black-hole entropy},
author = {Sean A. Hayward and Shinji Mukohyama and M. C. Ashworth},
journal= {arXiv preprint arXiv:gr-qc/9810006},
year = {2010}
}
备注
3 pages, revtex