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| Paper IPM / Physic / 9535 |
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Recently it has been shown in 0901.0931 [hep-th] that there are two extremal limits for the non-extremal Reissner-Nordstrom black hole: the extremal Reissner-Nordstrom black hole which carries no entropy and the "compactification solution" AdS_2 S^2 with flux which carries the macroscopic entropy of the non-extremal black hole. By uplifting the four dimensional solution to a five dimensional solution, we show that the "compactification solution" is dual to a CFT with central charge c=6Q_e(Q_e^2+Q_m^2). The Cardy formula then shows that the microscopic entropy of the CFT is the same as the macroscopic entropy of the "compactification solution".
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