Ontology type: schema:ScholarlyArticle Open Access: True
2010-07-22
AUTHORSAnurag Sahay, Tapobrata Sarkar, Gautam Sengupta
ABSTRACTIn this paper, we study various aspects of the equilibrium thermodynamic state space geometry of AdS black holes. We first examine the Reissner-Nordstrom-AdS (RN-AdS) and the Kerr-AdS black holes. In this context, the state space scalar curvature of these black holes is analysed in various regions of their thermodynamic parameter space. This provides important new insights into the structure and significance of the scalar curvature. We further investigate critical phenomena, and the behaviour of the scalar curvature near criticality, for KN-AdS black holes in two mixed ensembles, introduced and elucidated in our earlier work arXiv:1002.2538 [hep-th]. The critical exponents are identical to those in the RN-AdS and Kerr-AdS cases in the canonical ensemble. This suggests an universality in the scaling behaviour near critical points of AdS black holes. Our results further highlight qualitative differences in the thermodynamic state space geometry for electric charge and angular momentum fluctuations in these black holes. More... »
PAGES82
http://scigraph.springernature.com/pub.10.1007/jhep07(2010)082
DOIhttp://dx.doi.org/10.1007/jhep07(2010)082
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