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arXiv 1906.09561hep-thgr-qc
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论全息复杂性中的平衡项作用

On the Role of Counterterms in Holographic Complexity

Amin Akhavan, Farzad Omidi

摘要:

我们考虑爱因斯坦引力的复杂性=作用(CA)的建议,并研究新的反项,能够消除所有的紫外发散的全息复杂性。我们首先证明了在文献\cite{Carmi:2016wjl}中提出的两种不同的正则化引力作用量的方法是完全等价的,只要考虑Gibbons-Hawking-York项以及在WDW斑块的类时边界上全息重整化所激发的新的反项。接下来,我们在四维和五维渐近AdS时空的WDW补丁的零边界上引入新的反项,这些反项能够去除壳作用的所有UV发散。此外,它们是协变的,不改变运动方程。最后,利用零反项,我们计算了AdS-Schwarzschild黑洞的全息复杂性以及黑洞形成的复杂性。我们表明,零的counterterterms不改变的复杂性形成。

英文摘要:

We consider the Complexity=Action (CA) proposal in Einstein gravity and investigate new counterterms which are able to remove all the UV divergences of holographic complexity. We first show that the two different methods for regularizing the gravitational on-shell action proposed in Ref. \cite{Carmi:2016wjl} are completely equivalent, provided that one considers the Gibbons-Hawking-York term as well as new counterterms inspired from holographic renormalization on timelike boundaries of the WDW patch. Next, we introduce new counterterms on the null boundaries of the WDW patch for four and five dimensional asymptotically AdS spacetimes which are able to remove all the UV divergences of the on-shell action. Moreover, they are covariant and do not change the equations of motion. At the end, by applying the null counterterms, we calculate the holographic complexity of an AdS-Schwarzschild black hole as well as the complexity of formation. We show that the null counterterms do not change the complexity of formation.

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