Modifications of the Page Curve from correlations within Hawking radiation

We investigate quantum correlations between successive steps of black hole evaporation and investigate whether they might resolve the black hole information paradox. ‘Small’ corrections in various models were shown to be unable to restore unitarity. We study a toy qubit model of evaporation that all...

Full description

Saved in:
Bibliographic Details
Published in:Physics letters. B 2019-10, Vol.797 (C), p.134881, Article 134881
Main Authors: Alvi, Mishkat Al, Majumdar, Mahbub, Matin, Md. Abdul, Rahat, Moinul Hossain, Roy, Avik
Format: Article
Language:English
Subjects:
Black hole information paradox
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Quantum correlations
Qubit model black hole
Small correction
Toy model black hole
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We investigate quantum correlations between successive steps of black hole evaporation and investigate whether they might resolve the black hole information paradox. ‘Small’ corrections in various models were shown to be unable to restore unitarity. We study a toy qubit model of evaporation that allows small quantum correlations between successive steps and reaffirm previous results. Then, we relax the ‘smallness’ condition and find a nontrivial upper and lower bound on the entanglement entropy change during the evaporation process. This gives a quantitative measure of the size of the correction needed to restore unitarity. We find that these entanglement entropy bounds lead to a significant deviation from the expected Page curve.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2019.134881