Non-supersymmetric attractors and entropy function | Zendy

Mohsen Alishahiha | Zendy; Hajar Ebrahim | Zendy

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Non-supersymmetric attractors and entropy function

Author(s) -

Mohsen Alishahiha,

Hajar Ebrahim

Publication year - 2006

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2006/03/003

Subject(s) - attractor , binary entropy function , entropy (arrow of time) , physics , effective action , extremal black hole , mathematical physics , statistical physics , mathematics , principle of maximum entropy , quantum mechanics , mathematical analysis , statistics

We study the entropy of non-supersymmetric extremal black holes which exhibitattractor mechanism by making use of the entropy function. This method, beingsimple, can be used to calculate corrections to the entropy due to higher ordercorrections to the action. In particular we apply this method for fivedimensional non-supersymmetric extremal black hole which carries two magneticcharges and find the R^2 corrections to the entropy. Using the behavior of theaction evaluated for the extremal black hole near the horizon, we also presenta simple expression for C-function corrected by higher order corrections.Comment: 15 pages, Latex file, v2: references and some additional comments added, minor corrections, some comments about 5D supersymmetric BH added. v3:minor corrections, few comments added, refs. adde

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