Comments on the volume of the black hole interior in 2d gravity


Event details

Date 17.05.2022 11:0012:00  
Speaker Gabor Sarosi (CERN)
Category Conferences - Seminars
Event Language English

The volume of the interior of a two-sided eternal black hole classically grows forever. I will derive a microscopic formula for this volume in JT gravity by summing the non-perturbative contribution of higher topologies. These corrections lead to the saturation of the volume of the interior at times exponential in the entropy of the black hole. I will connect the microscopic formula for the volume with properties of a time-averaged density matrix, in particular with its second Renyi entropy, which I argue to measure the number of nearly orthogonal states visited by time evolution. I will discuss various problems with this interpretation.

Practical information

  • General public
  • Free


  • João Penedones


  • Corinne Weibel



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