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Black hole entropy function and attractor equations
Author(s) -
Lopes Cardoso G.
Publication year - 2007
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.200610344
Subject(s) - attractor , entropy (arrow of time) , binary entropy function , variational principle , supergravity , physics , black hole thermodynamics , mathematics , mathematical physics , statistical physics , classical mechanics , theoretical physics , mathematical analysis , principle of maximum entropy , quantum mechanics , supersymmetry , statistics
The macroscopic entropy and the attractor equations for extremal black hole solutions follow from a variational principle based on an entropy function. We review this variational principle for static extremal black holes in four space‐time dimensions and we discuss an example in the context of N = 2 supergravity.