Holographic Timelike Entanglement Entropy from Rindler Method

For a Lorentzian invariant theory, the entanglement entropy should be a function of the domain of dependence of the subregion under consideration. More precisely, it should be a function of the domain of dependence and the appropriate cut-off. In this paper, we refine the concept of cut-off to make...

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Bibliographic Details
Published in:arXiv.org 2024-06
Main Authors: Peng-Zhang, He, Hai-Qing Zhang
Format: Article
Language:English
Subjects:
Entanglement
Online Access:Get full text
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Summary:For a Lorentzian invariant theory, the entanglement entropy should be a function of the domain of dependence of the subregion under consideration. More precisely, it should be a function of the domain of dependence and the appropriate cut-off. In this paper, we refine the concept of cut-off to make it applicable to timelike regions and assume that the usual entanglement entropy formula also applies to timelike intervals. Using the Rindler method, the timelike entanglement entropy can be regarded as the thermal entropy of the CFT after the Rindler transformation plus a constant \(ic\pi/6\) with \(c\) the central charge. The gravitational dual of the `covariant' timelike entanglement entropy is finally presented following this method.
ISSN:2331-8422
DOI:10.48550/arxiv.2307.09803