论文标题
在广告/dcft中的Codimension-Two Branes上的岛
Island on codimension-two branes in AdS/dCFT
论文作者
论文摘要
对岛屿的先前研究和双重全息图主要集中于编构晶体。本文探索了ADS/DCFT中的Codimension-Two Brane上的岛屿。 Codimension-Two Brane与锥形奇异性密切相关，这与Codimension-One Brane有很大不同。我们分析了复合式两个勃雷上重力的质谱，发现勃雷张力越大，重力质量为越小。边界或归一化条件禁止无质量模式。我们证明了第一个巨大的引力模式位于Codimension-Two Brane上。张力越大，本地化越好。它类似于Codimension-One Brane的情况，并为研究黑洞进化而建立了良好的物理基础。我们发现，由于岛上的结尾，可以回收永恒黑洞的页面曲线。新功能是，在无岛阶段某个有限的时间后，无法定义极端表面。幸运的是，这种异常情况不会影响页面曲线，因为它发生在页面时间之后。
The previous studies of the island and double holography mainly focus on codimension-one branes. This paper explores the island on the codimension-two brane in AdS/dCFT. The codimension-two brane is closely related to conical singularity, which is very different from the codimension-one brane. We analyze the mass spectrum of gravitons on the codimension-two brane and find that the larger the brane tension is, the smaller the gravitational mass is. The massless mode is forbidden by either the boundary or normalization conditions. We prove that the first massive gravitational mode is located on the codimension-two brane; the larger the tension, the better the localization. It is similar to the case of codimension-one brane and builds an excellent physical foundation for the study of black hole evolution on codimension-two branes. We find that the Page curve of eternal black holes can be recovered due to the island ending on the codimension-two brane. The new feature is that the extremal surface passing the horizon cannot be defined after some finite time in the no-island phase. Fortunately, this unusual situation does not affect the Page curve since it happens after Page time.
