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arXiv 1508.01658hep-thgr-qc
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熵泛函与第二定律的c定理

Entropy functionals and c-theorems from the second law

Srijit Bhattacharjee, Arpan Bhattacharyya, Sudipta Sarkar, Aninda Sinha

摘要:

我们表明,对于一般的引力四阶导数理论,只有全息纠缠熵泛函在线性化阶微扰下服从第二定律。我们还推导出边界上的高曲率耦合在几个例子中,要求第二定律的有效性高阶扰动。对于AdS/CFT背景下的五维高斯-博内理论,黑膜产生的边界与视界附近没有声道不稳定性相吻合。重复对拓扑黑洞的分析,该边界与张量通道因果约束(这是粘性边界的原因)相一致。此外,我们展示了如何恢复全息c-定理在较高的曲率理论从类似的考虑的基础上Raychaudhuri方程。

英文摘要:

We show that for a general four derivative theory of gravity, only the holographic entanglement entropy functionals obey the second law at linearized order in perturbations. We also derive bounds on the higher curvature couplings in several examples, demanding the validity of the second law for higher order perturbations. For the five dimensional Gauss-Bonnet theory in the context of AdS/CFT, the bound arising from black branes coincides with there being no sound channel instability close to the horizon. Repeating the analysis for topological black holes, the bound coincides with the tensor channel causality constraint (which is responsible for the viscosity bound). Furthermore, we show how to recover the holographic c-theorems in higher curvature theories from similar considerations based on the Raychaudhuri equation.

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