Black Hole Entropy for Two Higher Derivative Theories of Gravity

Entropy

Emilio Bellini¹  Roberto Di Criscienzo²  Lorenzo Sebastiani² 

[1] Dipartimento di Fisica “G. Galilei”, Università di Padova and Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via Marzolo 8–35131 Padova, Italia; E-Mail:;Dipartimento di Fisica, Università di Trento and Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Trento, Via Sommarive 14–38123 Povo, Italia; E-Mails:

关键词: black hole entropy;    modified theories of gravity;   

DOI  :  10.3390/e12102186

来源: mdpi

【 摘 要 】

The dark energy issue is attracting the attention of an increasing number of physicists all over the world. Among the possible alternatives to explain what as been named the “Mystery of the Millennium” are the so-called Modified Theories of Gravity. A crucial test for such models is represented by the existence and (if this is the case) the properties of their black hole solutions. Nowadays, to our knowledge, only two non-trivial, static, spherically symmetric, solutions with vanishing cosmological constant are known by Barrow & Clifton (2005) and Deser, Sarioglu & Tekin (2008). The aim of the paper is to discuss some features of such solutions, with emphasis on their thermodynamic properties such as entropy and temperature.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.