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Black Hole Entropy for Two Higher Derivative Theories of Gravity
Dipartimento di Fisica “G. Galilei”, Università di Padova and Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via Marzolo 8–35131 Padova, Italia
Dipartimento di Fisica, Università di Trento and Istituto Nazionale di Fisica Nucleare, Gruppo
* Author to whom correspondence should be addressed.
Received: 10 September 2010; Accepted: 9 October 2010 / Published: 21 October 2010
Abstract: 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.
Keywords: black hole entropy; modified theories of gravity
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MDPI and ACS Style
Bellini, E.; Criscienzo, R.D.; Sebastiani, L.; Zerbini, S. Black Hole Entropy for Two Higher Derivative Theories of Gravity. Entropy 2010, 12, 2186-2198.
Bellini E, Criscienzo RD, Sebastiani L, Zerbini S. Black Hole Entropy for Two Higher Derivative Theories of Gravity. Entropy. 2010; 12(10):2186-2198.
Bellini, Emilio; Criscienzo, Roberto Di; Sebastiani, Lorenzo; Zerbini, Sergio. 2010. "Black Hole Entropy for Two Higher Derivative Theories of Gravity." Entropy 12, no. 10: 2186-2198.