2016/05/31 by Netta Engelhardt, Gary T. Horowitz · 1 citation
Physics and Astronomy · #hep-th #gr-qc
paper · pdf · doi:10.1088/1361-6382/34/1/015004
published as Class.Quant.Grav. 34 (2017) no.1, 015004 · 29 pages, 10 figures; v3: an incorrect side result is removed, main conclusions unaffected; refs added
arxiv created 2016/08/23 · arxiv updated 2017/07/26
We prove that the metric of a general holographic spacetime can be reconstructed (up to an overall conformal factor) from distinguished spatial slices - "light-cone cuts" - of the conformal boundary. Our prescription is covariant and applies to bulk points in causal contact with the boundary. Furthermore, we describe a procedure for determining the light-cone cuts corresponding to bulk points in the causal wedge of the boundary in terms of the divergences of correlators in the dual field theory. Possible extensions for determining the conformal factor and including the cuts of points outside of the causal wedge are discussed. We also comment on implications for subregion/subregion duality.