Causal structures and nonlocality in double holography
Causal structures and nonlocality in double holography
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DOI：
10.1007/jhep07(2022)128
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发表时间：
2021-07
影响因子：
5.4
通讯作者：
Hidetoshi Omiya;Zixia Wei
中科院分区：
文献类型：
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作者：
Hidetoshi Omiya;Zixia Wei
双全息术在霍金辐射和信息悖论的最新研究中起着至关重要的作用，它将一个中间图像（在这个中间图像中，一个生活在世界尽头的膜上的动力学引力与一个非引力热浴耦合）与一个更好理解的BCFT图像以及一个体图像联系起来。本文研究了一般双全息装置中的因果结构。我们发现，因果结构的散装图片是兼容的因果关系的BCFT图片，由于推广的高-沃尔德定理。另一方面，一致性与散装因果结构要求有效的理论在中间图片包含一种特殊类型的超光速和非局部效应，这是显着的远程或IR。这些都证实了几何分析和微观领域的放大器。利用这种非定域性，讨论了双全息中的子区域对应。这种非局部性的可能的基本起源和它与其他类型的非局部性的区别也将被讨论。
Double holography plays a crucial role in recent studies of Hawking radiation and information paradox by relating an intermediate picture, in which a dynamical gravity living on an end-of-the-world brane is coupled to a non-gravitational heat bath, to a much better-understood BCFT picture as well as a bulk picture. In this paper, causal structures in generic double holographic setups are studied. We find that the causal structure in the bulk picture is compatible with causality in the BCFT picture, thanks to a generalization of the Gao-Wald theorem. On the other hand, consistency with the bulk causal structure requires the effective theory in the intermediate picture to contain a special type of super-luminal and nonlocal effect which is significant at long range or IR. These are confirmed by both geometrical analysis and commutators of microscopic fields. Subregion correspondences in double holography are discussed with the knowledge of this nonlocality. Possible fundamental origins of this nonlocality and its difference with other types of nonlocality will also be discussed.