Entanglement Entropy of Black Shells

TL;DR

This paper offers a unified explanation of black hole entropy by connecting entanglement, thermofield dynamics, and brick wall models, clarifying the nature and location of Bekenstein-Hawking entropy.

Contribution

It provides a self-consistent framework linking different approaches to understanding black hole entropy and clarifies its physical interpretation.

Findings

Unified account of black hole entropy

Clarification of entropy's physical location

Integration of multiple theoretical models

Abstract

We present a coherent account of how the entanglement interpretation, thermofield dynamical description and the brick wall formulations (with the ground state correctly identified) fit into a connected and self-consistent explanation of what Bekenstein-Hawking entropy is, and where it is located.