Traversability of multi-boundary wormholes

Traversability of multi-boundary wormholes
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多边界虫洞的可穿越性

DOI:
10.1007/jhep04(2021)083
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发表时间:
2021
影响因子:
5.4
通讯作者:
Marolf, Donald
Marolf, Donald
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Al Balushi, Abdulrahim;Wang, Zhencheng;Marolf, Donald

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我们将可穿越双边虫洞的Gao-Jafferis-Wall结构推广到多边界虫洞。在我们的构造中,我们把ADS 3中的背景时空看作是多边界黑洞。我们在热极限下工作,其中某些区域的对偶CFT态局部类似于热场双态。此外,在这些地区,热极限使因果阴影指数变小。基于热极限的这两个特征,以三边界虫洞为例,我们证明了多边界虫洞中任意两个渐近区域之间的可穿透性可以通过双迹变形来触发。特别是,这两个边界区域不必具有相同的温度和角动量。我们讨论了在我们的构造中可穿透性的非平凡的角度依赖性,以及因果阴影区域的影响。
We generalize the Gao-Jafferis-Wall construction of traversable two-sided wormholes to multi-boundary wormholes. In our construction, we take the background spacetime to be multi-boundary black holes in AdS 3. We work in the hot limit where the dual CFT state in certain regions locally resembles the thermofield double state. Furthermore, in these regions, the hot limit makes the causal shadow exponentially small. Based on these two features of the hot limit, and with the three-boundary wormhole as our main example, we show that traversability between any two asymptotic regions in a multi-boundary wormhole can be triggered using a double-trace deformation. In particular, the two boundary regions need not have the same temperature and angular momentum. We discuss the non-trivial angular dependence of traversability in our construction, as well as the effect of the causal shadow region.
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