Black Holes, Entanglement and Random Matrices

Authors:
  • VBVijay Balasubramanian
    Vijay Balasubramanian
  • MBMicha Berkooz
    Micha Berkooz
  • SRSimon F. Ross
    Simon F. Ross
  • JSJoan Simon
    Joan Simon
Preprint
Publisher website
Google Scholar
Abstract
We provide evidence that strong quantum entanglement between Hilbert spaces does not generically create semiclassical wormholes between the corresponding geometric regions in the context of the AdS/CFT correspondence. We propose a description of low-energy gravity probes as random operators on the space of black hole states. We use this description to compute correlators between the entangled systems, and argue that a wormhole can only exist if correlations are large. Conversely, we also argue that large correlations can exist in the manifest absence of a Lorentzian wormhole. Thus the strength of the entanglement cannot generically diagnose spacetime connectedness, without information on the spectral properties of the probing operators. Our random matrix picture of probes also provides suggestive insights into the problem of "seeing behind a horizon".