Black hole entropy in modified-gravity models

被引：60
作者：
Briscese, F. [1 ,2 ]
Elizalde, E. [3 ,4 ]
机构：
[1] Univ Roma La Sapienza, Dipartimento Modelli & Metodi Matemat, I-00161 Rome, Italy
[2] Univ Roma La Sapienza, GNFM, I-00161 Rome, Italy
[3] Inst Ciencies Espali CSIC, Fac Ciencies, E-08193 Barcelona, Spain
[4] IEEC CSIC, Fac Ciencies, E-08193 Barcelona, Spain
来源：
PHYSICAL REVIEW D | 2008年 / 77卷 / 04期
关键词：
D O I：
10.1103/PhysRevD.77.044009
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
An analysis of some modified-gravity models, based on the study of pure Schwarzschild and of Schwarzschild-de Sitter black holes, and involving the use of the Noether charge method, is carried out. Corrections to the classical Einsteinian black hole entropy appear. It is shown explicitly how the condition of positive entropy can be used in order to constrain the viability of modified-gravity theories.
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页数：5
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