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arXiv 2004.11628hep-thgr-qc
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纯BTZ黑洞微态Action -复杂性的正则化

Regularizations of Action-Complexity for a Pure BTZ Black Hole Microstate

Farzad Omidi

摘要:

在作用复杂性理论中,有两种不同的方法来正则化引力在壳上的作用,它们在AdS/CFT的框架中是等价的。在本文中,我们将研究纯BTZ黑洞微观态下它们的等价性。微观态是从被动态类时ETW膜截断的双边BTZ黑洞中得到的。此外,在二维CFT中,它是有限能量纯态的对偶。我们表明,如果包括全息重整化的启发,以及Gibbons-Hawking-York项的WDW补丁,它存在于正则化之一的类时边界的类时反项,在两种方法中的UV发散项的系数的动作复杂性变得彼此相等。此外,我们比较了这两种正则化的有限项的动作复杂性,并表明,当UV截止面是足够接近的渐近边界的散装时空,在这两种正则化的动作复杂性变得完全相等对方。

英文摘要:

In the action-complexity proposal there are two different methods to regularize the gravitational on-shell action, which are equivalent in the framework of AdS/CFT. In this paper, we want to study the equivalence of them for a pure BTZ black hole microstate. The microstate is obtained from a two-sided BTZ black hole truncated by a dynamical timelike ETW brane. Moreover, it is dual to a finite energy pure state in a two-dimensional CFT. We show that if one includes the timelike counterterms inspired by holographic renormalization as well as the Gibbons-Hawking-York term on the timelike boundary of the WDW patch, which exists in one of the regularizations, the coefficients of the UV divergent terms of action-complexity in the two methods become equal to each other. Furthermore, we compare the finite terms of action-complexity in both regularizations, and show that when the UV cutoff surface is close enough to the asymptotic boundary of the bulk spacetime, action-complexities in both regularizations become exactly equal to each other.

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