Entropy (Feb 2020)

Non-Monogamy of Spatio-Temporal Correlations and the Black Hole Information Loss Paradox

  • Chiara Marletto,
  • Vlatko Vedral,
  • Salvatore Virzì,
  • Enrico Rebufello,
  • Alessio Avella,
  • Fabrizio Piacentini,
  • Marco Gramegna,
  • Ivo Pietro Degiovanni,
  • Marco Genovese

DOI
https://doi.org/10.3390/e22020228
Journal volume & issue
Vol. 22, no. 2
p. 228

Abstract

Read online

Pseudo-density matrices are a generalisation of quantum states and do not obey monogamy of quantum correlations. Could this be the solution to the paradox of information loss during the evaporation of a black hole? In this paper we discuss this possibility, providing a theoretical proposal to extend quantum theory with these pseudo-states to describe the statistics arising in black-hole evaporation. We also provide an experimental demonstration of this theoretical proposal, using a simulation in optical regime, that tomographically reproduces the correlations of the pseudo-density matrix describing this physical phenomenon.

Keywords