Probing Hawking radiation through capacity of entanglement

Feb 4, 2021
28 pages
Published in:
  • JHEP 05 (2021) 062
  • Published: May 10, 2021
e-Print:
Report number:
  • YITP-21-08

Citations per year

202120222023202420250102030
Abstract: (arXiv)
We consider the capacity of entanglement in models related with the gravitational phase transitions. The capacity is labeled by the replica parameter which plays a similar role to the inverse temperature in thermodynamics. In the end of the world brane model of a radiating black hole the capacity has a peak around the Page time indicating the phase transition between replica wormhole geometries of different types of topology. Similarly, in a moving mirror model describing Hawking radiation the capacity typically shows a discontinuity when the dominant saddle switches between two phases, which can be seen as a formation of island regions. In either case we find the capacity can be an invaluable diagnostic for a black hole evaporation process.
Note:
  • 28 pages, 12 figures; v2: typos corrected, references added; v3: typos corrected, references added, published version
  • 2D Gravity
  • Black Holes
  • radiation: Hawking
  • mirror: model
  • critical phenomena: gravitation
  • black hole: evaporation
  • entropy: entanglement
  • membrane model
  • wormhole
  • field theory: conformal