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arXiv 2103.01483hep-thgr-qc
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爱因斯坦边界项的熵函数

Entropy function from the Einstein boundary term

Anirban Roy Chowdhury, Ashis Saha, Sunandan Gangopadhyay

摘要:

利用Sen \cite{Sen:2005wa}提出的熵函数形式,证明了由Einstein-Hilbert作用产生的边界项足以产生渐近平坦的静态极值黑洞的Bekenstein-Hawking熵.然而,对于渐近的$AdS$黑洞,由于宇宙学常数的存在,体项也起着重要的作用。此外,我们表明,极端旋转黑洞,边界和散装条款有助于非零件的熵。

英文摘要:

We show using the entropy function formalism developed by Sen \cite{Sen:2005wa} that the boundary term which arises from the Einstein-Hilbert action is sufficient to yield the Bekenstein-Hawking entropy of a static extremal black hole which is asymptotically flat. However, for asymptotically $AdS$ black holes, the bulk term also plays an important role due to the presence of the cosmological constant. Further, we show that for extremal rotating black holes, both the boundary and the bulk terms contribute non-vanishing pieces to the entropy.

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