Redefining entanglement entropy -- can it solve the information paradox?

TL;DR

This paper argues that redefining entanglement entropy does not resolve the black hole information paradox and emphasizes the need for specific conditions in qubit models to address the paradox effectively.

Contribution

It clarifies why redefinitions of entanglement entropy are insufficient and outlines necessary conditions for qubit models to potentially solve the information paradox.

Findings

Redefining entanglement entropy does not address the core issue of the paradox.

Conditions for qubit models to resolve the paradox are identified.

Community should focus on these conditions as a consistency check.

Abstract

Qubit Models which aim to resolve the information paradox must not redefine entanglement entropy as a redefinition does not address the correct issue of the information paradox. The purpose of this letter is to understand why any redefinition of entanglement entropy is not relevant to the paradox. Also, conditions required for a bit model to resolve the information paradox are listed, motivating the community to look for such conditions as a consistency check in their qubit models.