Theoretical Physics Seminar: Joshua Kames-King

  • Date: –16:45
  • Location: Zoom
  • Lecturer: Joshua Kames-King (Bonn U. and Santa Barbara, KITP)
  • Contact person: Nicolò Piazzalunga
  • Seminarium

Title: No Page curves for de Sitter

Abstract: The nature of de Sitter horizon and a possible microscopic interpretation are still a mystery. In this talk I will explain how we investigated the question of unitary evaporation for the de Sitter horizon in [2108.09318]. More concretely, in the out-of-equilibrium Unruh de Sitter state, analogous to black hole evaporation for cosmological horizons we study the time-dependent radiation entropy for both the meta-observer and the static patch observer. I will conclude by commenting on work in progress relating to recent approaches to static patch holography and quantum information in cosmological spacetimes.