On the reconstruction of Lifshitz spacetimes

  • Simon A. GentleEmail author
  • Cynthia Keeler
Open Access
Regular Article - Theoretical Physics


We consider the reconstruction of a Lifshitz spacetime from three perspectives: differential entropy (or ‘hole-ography’), causal wedges and entanglement wedges. We find that not all time-varying bulk curves in vacuum Lifshitz can be reconstructed via the differential entropy approach, adding a caveat to the general analysis of [1]. We show that the causal wedge for Lifshitz spacetimes degenerates, while the entanglement wedge requires the additional consideration of a set of boundary-emanating light-sheets. The need to include bulk surfaces with no clear field theory interpretation in the differential entropy construction and the change in the entanglement wedge formation both serve as warnings against a naive application of holographic entanglement entropy proposals in Lifshitz spacetimes.


AdS-CFT Correspondence Gauge-gravity correspondence Holography and condensed matter physics (AdS/CMT) 


Open Access

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Copyright information

© The Author(s) 2016

Authors and Affiliations

  1. 1.Department of Physics and AstronomyUniversity of CaliforniaLos AngelesU.S.A.
  2. 2.Niels Bohr International Academy, Niels Bohr InstituteUniversity of CopenhagenCopenhagenDenmark

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