Probing typical black hole microstates

  • Jan de Boer
  • Rik van Breukelen
  • Sagar F. Lokhande
  • Kyriakos PapadodimasEmail author
  • Erik Verlinde
Open Access
Regular Article - Theoretical Physics


We investigate the possibility that the geometry dual to a typical AdS black hole microstate corresponds to the extended AdS-Schwarzschild geometry, including a region spacelike to the exterior. We argue that this region can be described by the mirror operators, a set of state-dependent operators in the dual CFT. We probe the geometry of a typical state by considering state-dependent deformations of the CFT Hamiltonian, which have an interpretation as a one-sided analogue of the Gao-Jafferis-Wall traversable wormhole protocol for typical states. We argue that the validity of the conjectured bulk geometry requires that out-of-time-order correlators of simple CFT operators on typical pure states must exhibit the same chaotic effects as thermal correlators at scrambling time. This condition is related to the question of whether the product of operators separated by scrambling time obey the Eigenstate Thermalization Hypothesis. We investigate some of these statements in the SYK model and discuss similarities with state-dependent perturba- tions of pure states in the SYK model previously considered by Kourkoulou and Maldacena. Finally, we discuss how the mirror operators can be used to implement an analogue of the Hayden-Preskill protocol.


AdS-CFT Correspondence Black Holes in String Theory 


Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited


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Copyright information

© The Author(s) 2020

Authors and Affiliations

  • Jan de Boer
    • 1
  • Rik van Breukelen
    • 2
    • 3
  • Sagar F. Lokhande
    • 1
  • Kyriakos Papadodimas
    • 4
    Email author
  • Erik Verlinde
    • 1
  1. 1.Institute for Theoretical Physics and Delta Institute for Theoretical PhysicsUniversity of AmsterdamAmsterdamThe Netherlands
  2. 2.Theoretical Physics DepartmentCERNGeneva 23Switzerland
  3. 3.Geneva UniversityGeneva 4Switzerland
  4. 4.International Centre for Theoretical PhysicsTriesteItaly

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