论文标题
在保姆上，未来 - 极端表面和“纠缠楔”
On de Sitter future-past extremal surfaces and the "entanglement wedge"
论文作者
论文摘要
我们进一步发展了以前的工作中讨论的De Sitter空间中未来和过去边界之间延伸的Codim-2未来的极端表面。首先，我们更加详细地构建了锚定在未来边界更一般子区域的此类表面，并延伸到过去边界处的等效子区域。这些顶部的对称对称的未来 - 极端表面无法穿透北/南部钻石区域的一定限制表面：边界子区域成为该极限表面的整个边界。对于多个不连接子区域，该构建导致相互信息消失，强大的亚加性饱和。然后，我们讨论由这些Codim-2表面产生的有效的Codim-1包膜表面。这导致了纠缠楔的类似物和de Sitter Space的这些未来最大的极端表面的纠缠楔和子区域二元性。
We develop further the codim-2 future-past extremal surfaces stretching between the future and past boundaries in de Sitter space, discussed in previous work. We first make more elaborate the construction of such surfaces anchored at more general subregions of the future boundary, and stretching to equivalent subregions at the past boundary. These top-bottom symmetric future-past extremal surfaces cannot penetrate beyond a certain limiting surface in the Northern/Southern diamond regions: the boundary subregions become the whole boundary for this limiting surface. For multiple disjoint subregions, this construction leads to mutual information vanishing and strong subadditivity being saturated. We then discuss an effective codim-1 envelope surface arising from these codim-2 surfaces. This leads to analogs of the entanglement wedge and subregion duality for these future-past extremal surfaces in de Sitter space.
