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arXiv 1205.0971hep-thgr-qc
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不同维下Schwarzschild等非极值黑洞熵的对数修正

Logarithmic Corrections to Schwarzschild and Other Non-extremal Black Hole Entropy in Different Dimensions

Ashoke Sen

摘要:

欧几里德引力方法已成功地计算了低能数据下的极值黑洞熵的对数修正,并给出了与弦论微观结果完全一致的结果。受这一成功的启发,我们应用欧几里得引力计算对数修正的熵的各种非极值黑洞在不同的维度,特别注意的零模式的集成和跟踪的合奏中完成的计算。这些结果提供了强有力的约束,任何紫外线完成的理论,如果后者能够给出一个独立的计算的非极值黑洞的熵从微观描述。对于四维时空中的史瓦西黑洞,宏观结果似乎与圈量子引力中已有的结果不一致。

英文摘要:

Euclidean gravity method has been successful in computing logarithmic corrections to extremal black hole entropy in terms of low energy data, and gives results in perfect agreement with the microscopic results in string theory. Motivated by this success we apply Euclidean gravity to compute logarithmic corrections to the entropy of various non-extremal black holes in different dimensions, taking special care of integration over the zero modes and keeping track of the ensemble in which the computation is done. These results provide strong constraint on any ultraviolet completion of the theory if the latter is able to give an independent computation of the entropy of non-extremal black holes from microscopic description. For Schwarzschild black holes in four space-time dimensions the macroscopic result seems to disagree with the existing result in loop quantum gravity.

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