Abstract
We discuss the holographic reconstruction of static thin bubble walls in BTZ black hole geometries. We consider two reconstruction prescriptions suggested in recent years: hole-ography and light-cone cuts, in the context of thin bubble walls, and comment on their applicability in the presence of non-trivial matter in the bulk. We find that while the light-cone cuts prescription goes through within its own limitations, the current hole-ographic approaches are inadequate to describe bubble spacetimes completely. Much like entanglement shadows found around BTZ black holes and conical defects in the bulk, we find that thin bubbles are accompanied by shadows of their own, which are regions of spacetime which are only partially probed by minimal geodesics. We speculate that such shadows might be a generic feature of the presence of matter in the bulk.
Highlights
Since the seminal work of Maldacena in 1997 [1], holography has came to become one of the cornerstones of twenty-first century high energy physics
We discuss the holographic reconstruction of static thin bubble walls in Bañados, Teitelboim, and Zanelli (BTZ) black hole geometries
Much as entanglement shadows found around BTZ black holes and conical defects in the bulk, we find that thin bubbles are accompanied by shadows of their own, which are regions of spacetime that are only partially probed by minimal geodesics
Summary
Since the seminal work of Maldacena in 1997 [1], holography has came to become one of the cornerstones of twenty-first century high energy physics. We can derive analytic expressions for the quantities being proposed in bulk reconstruction and explore their validity Our setup is such that the static shell solution bounds two BTZ black hole spacetimes: the inside “−” and outside “þ,” respectively. In Appendix, we present the construction of kinematic spaces associated with bubble spacetimes
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