Traversability of Multi-Boundary Wormholes

Abstract

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.

arXiv commentv3, fixed some typos

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Cited by in corpus (7)

• Wormholes & Holography: An Introduction
• Multi-mouth Traversable Wormholes
• Interacting Thermofield Doubles and Critical Behavior in Random Regular Graphs
• Holographic teleportation in higher dimensions
• Worldsheet traversable wormholes
• Traversable wormholes via a double trace deformation involving $U(1)$ conserved current operators
• How to Make Traversable Wormholes: Eternal AdS${}_4$ Wormholes from Coupled CFT's