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 AdS3. 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.
Highlights
In recent years, there have been many approaches to constructing traversable wormholes from averaged null energy condition (ANEC) violations, see [4,5,6,7,8,9,10,11]
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 multiboundary wormhole can be triggered using a double-trace deformation
We show in the hot limit that the |∆V | induced by a fixed boundary coupling becomes larger than the gap |∆VCS| between horizons associated with the existence of the causal shadow region
Summary
We will first review how to construct multi-boundary black holes by quotienting empty AdS3 with isometries, following an algebraic approach [20,21,22,23,24,25].2 we discuss fixed points of those isometries, (renormalized) geodesic distances in different conformal frames, and how they behave in the hot limit. We will first review how to construct multi-boundary black holes by quotienting empty AdS3 with isometries, following an algebraic approach [20,21,22,23,24,25].2. We discuss fixed points of those isometries, (renormalized) geodesic distances in different conformal frames, and how they behave in the hot limit. Those results will be useful in our construction of multi-boundary traversable wormholes. We briefly describe the CFT states that are dual to these geometries
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
