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考虑Kerr黑洞内视界处的热性质后,给出了Bekenstein-Smarr公式的新形式,重新定义了黑洞熵.黑洞温度趋于绝对零度时,新定义的黑洞熵一定趋于零.它满足能斯特定理,可视为黑洞的普朗克绝对熵.After considering thermal character of the inner horizon of Kerr black hole, we give a new form of the Bekenstein-Smarr formula and re-define black hole entropy. The balck hole entropy re-defined must go to zero as the temperature of black the approaches absolute zero. The entropy satisfies the Nernst theorem, so it can be regarded as the Planck absolute entropy of black hole.
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