The entanglement wedge of unknown couplings

The entanglement wedge of unknown couplings
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未知耦合的纠缠楔

DOI:
--
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发表时间:
2021
影响因子:
5.4
通讯作者:
Henry W. Lin
Henry W. Lin
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Ahmed Almheiri;Henry W. Lin

文献摘要

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黑洞内部是时空的一个神秘区域,在那里,非微扰效应有时很重要。这些非微扰效应被认为是高度依赖于理论的。我们锐化这些声明考虑设置黑洞的状态是在一个叠加的状态对应于边界理论与不同的耦合,纠缠的参考,保持跟踪这些耦合。然后,参考的纠缠楔可以被解释为对耦合值最敏感的体区域。在简单的整体模型中,例如,JT引力+一个物质BCFT,QES公式意味着参考包含黑洞内部在晚些时候。我们还分析了参考文献的Renyi-2熵tr ρ2,它可以被看作是混沌的一个诊断,通过Loschirton回声。我们发现明确的副本虫洞诊断岛和恢复统一。数值和分析的证据,这些报表中的SYK模型。类似的考虑预计将适用于更高的维度AdS/CFT,边缘,甚至不相关的耦合。
The black hole interior is a mysterious region of spacetime where non-perturbative effects are sometimes important. These non-perturbative effects are believed to be highly theory-dependent. We sharpen these statements by considering a setup where the state of the black hole is in a superposition of states corresponding to boundary theories with different couplings, entangled with a reference which keeps track of those couplings. The entanglement wedge of the reference can then be interpreted as the bulk region most sensitive to the values of the couplings. In simple bulk models, e.g., JT gravity + a matter BCFT, the QES formula implies that the reference contains the black hole interior at late times. We also analyze the Renyi-2 entropy tr ρ2 of the reference, which can be viewed as a diagnostic of chaos via the Loschmidt echo. We find explicitly the replica wormhole that diagnoses the island and restores unitarity. Numerical and analytical evidence of these statements in the SYK model is presented. Similar considerations are expected to apply in higher dimensional AdS/CFT, for marginal and even irrelevant couplings.
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