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arXiv 1901.11535hep-th
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Kerr黑洞热力学的高阶导数修正

Higher derivative corrections to Kerr black hole thermodynamics

Harvey S. Reall, Jorge E. Santos

摘要:

在引力的有效场论方法中,爱因斯坦-希尔伯特作用量由高阶导数项补充。在没有物质的情况下,四个导数项可以通过场的重新定义来消除。我们使用欧几里德作用量来计算解析的修正所产生的条款与六个或八个衍生物的克尔解决方案的热力学量。如果八个导数项的系数具有适当的符号,则它们对熵(在固定质量和角动量下)进行非负校正。六个导数项的修正没有明确的符号。

英文摘要:

In an effective field theory approach to gravity, the Einstein-Hilbert action is supplemented by higher derivative terms. In the absence of matter, four derivative terms can be eliminated by a field redefinition. We use the Euclidean action to calculate analytically the corrections to thermodynamic quantities of the Kerr solution arising from terms with six or eight derivatives. The eight derivative terms make a non-negative correction to the entropy (at fixed mass and angular momentum) if their coefficients have appropriate signs. The correction from the six derivative terms does not have a definite sign.

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