We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Moduli and (un)attractor black hole thermodynamics.
- Authors
Dumitru Astefanesei; Kevin Goldstein; Swapna Mahapatra
- Abstract
Abstract We investigate four-dimensional spherically symmetric black hole solutions in gravity theories with massless, neutral scalars non-minimally coupled to gauge fields. In the non-extremal case, we explicitly show that, under the variation of the moduli, the scalar charges appear in the first law of black hole thermodynamics. In the extremal limit, the near horizon geometry is AdS 2 × S 2 and the entropy does not depend on the values of moduli at infinity. We discuss the attractor behaviour by using Sen’s entropy function formalism as well as the effective potential approach and their relation with the results previously obtained through special geometry method. We also argue that the attractor mechanism is at the basis of the matching between the microscopic and macroscopic entropies for the extremal non-BPS Kaluza–Klein black hole.
- Subjects
THERMODYNAMICS; PHYSICAL &; theoretical chemistry; DYNAMICS; MECHANICS (Physics)
- Publication
General Relativity & Gravitation, 2008, Vol 40, Issue 10, p2069
- ISSN
0001-7701
- Publication type
Article
- DOI
10.1007/s10714-008-0616-6