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arXiv 2610.15917hep-th
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三维Lovelock引力中所有阶正则BTZ黑洞的微观熵

Microscopic entropy of regular BTZ black holes in 3d Lovelock gravity at all orders

Department of Physics, Faculty of Arts and Sciences, Sinop University(锡诺普大学文理学院物理系)

Hikmet Özşahin

AI总结:

该研究推导了含无限阶正则化Lovelock修正的三维Lovelock引力中黑洞的微观熵,通过迷你超空间形式体系结合Cardy公式,验证了旋转黑洞的半经典熵,为正则BTZ黑洞的熵提供了微观解释。

摘要:

我们对具有无限阶正则化Lovelock修正的三维Lovelock引力黑洞的半经典熵进行了微观推导,这些修正包含了近期发现的正则BTZ黑洞。在迷你超空间形式体系下,我们证明了约化作用量及其边界项可通过耦合生成函数以闭式形式在所有阶得到。假设基态由静态黑洞经双重Wick转动得到的孤子描述,我们计算了孤子质量,并利用无中心荷的Cardy公式重现了任意耦合下的半经典熵。随后我们将迷你超空间扩展至稳态构型,计算了经洛伦兹boost得到的旋转黑洞的质量与角动量,并在旋转存在的情况下验证了Cardy公式。

英文摘要:

We give a microscopic derivation of the semi-classical entropy of the black holes of 3d Lovelock gravity with an infinite tower of regularized Lovelock corrections, which include the regular BTZ black holes found recently. Working in the mini-superspace formalism, we show that the reduced action and its boundary term can be obtained in closed form at all orders in terms of the generating function of the couplings. Assuming the ground state is described by the soliton obtained from the static black hole by a double Wick rotation, we compute the soliton mass and reproduce the semi-classical entropy from the Cardy formula without central charges for arbitrary couplings. We then extend the mini-superspace to stationary configurations, compute the mass and the angular momentum of the rotating black holes obtained by a boost, and verify the Cardy formula in the presence of rotation.

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