标题： AdS中的可穿越虫洞与纠缠 显示英文标题

标题： Traversable Wormhole in AdS and Entanglement

摘要： 可穿越虫洞通常违反平均无能量条件，通常需要奇异物质。最近发现，在平坦空间的爱因斯坦-狄拉克-麦克斯韦理论中，可以通过非奇异物质实现可穿越虫洞。本文将讨论推广到AdS时空，并发现了具有球状和平面拓扑的可穿越虫洞。此外，基于AdS/CFT对应关系，我们计算了虫洞两个AdS边界的条带和圆盘的纠缠熵。我们发现，随着子系统大小的增加，纠缠熵会发生相变。 显示英文摘要

摘要： A traversable wormhole generally violates the averaged null energy condition, usually requiring exotic matter. Recently, it has been found that the traversable wormhole can be realized by non-exotic matter in Einstein-Dirac-Maxwell theories in flat space. This paper generalizes discussions to the AdS spacetime and finds traversable wormholes with spherical and planar topologies. Furthermore, based on the AdS/CFT correspondence, we compute the entanglement entropy of strips and disks on two AdS boundaries of the wormhole. We find that entanglement entropy undergoes a phase transition as the subsystem size increases.