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arXiv 2512.04435hep-thmath-phmath.MP
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具有两个面积的引力代数

Gravitational Algebras with Two Areas

University of Illinois Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校)

Xuchen Cao, Thomas Faulkner, Zhencheng Wang

AI总结:

本文研究了具有两个极值表面的时空中的引力代数,通过构造II型和III型代数,探讨了面积和/差算子对相变序参数的影响。

摘要:

我们研究具有两个极值表面的时空上的引力代数。在长虫洞的例子中,该虫洞有两个渐近AdS边界和两个紧致极值表面,我们讨论将引力代数分配给由极值表面和/或渐近边界所包围的各个区域。利用分裂性质,我们从左外侧、右外侧、中间“python's lunch”区域及其补集区域的交叉积中构造出II型代数。我们还研究了仅包含面积和算子或面积差算子作为引力代数一部分的情况。这可以通过选择适当的微可积集合实现,这些引力代数可以是II型或III型,取决于区域。在仅包含面积差模式的情况下,交叉积导致一个限制到中间区域的权重。相对于该权重的相对熵差给出广义熵的差异。这为控制纠缠楔之间相变的序参数提供了代数理解。我们强调了我们在构造中使用的算子值权重的作用。

英文摘要:

We study gravitational algebras on spacetimes with two extremal surfaces. In the example of a long wormhole with two asymptotic AdS boundaries and two compact extremal surfaces, we discuss the assignment of gravitational algebras to various regions bounded by the extremal surfaces and/or asymptotic boundaries. Using the split property, we construct type II algebras from the crossed product in the left exterior, right exterior, the middle ``python's lunch'' region, and their complement regions. We also study the case where only the area sum operator or area difference operator is included as part of the gravitational algebra. This can be achieved by picking the appropriate microcanonical ensemble, and these gravitational algebras can either be type II or type III depending on the region. In the case where we include only the area difference mode, the crossed product gives rise to a weight that restricts to a trace on the middle region. Differences of relative entropies with respect to this weight give differences in generalized entropies. This provides an algebraic understanding of the order parameter that controls the phase transitions between entanglement wedges. We emphasize the role of operator-valued weights used in our construction.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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