Moving Mirror Model of Hawking Evaporation

TL;DR

This paper extends the moving mirror model to include back reaction effects, revealing a unique two-dimensional scenario where Hawking radiation ceases, leaving a remnant and long-term non-thermal correlations.

Contribution

It introduces a dynamic moving mirror model with back reaction, showing Hawking radiation can stop and a remnant can form, with long-term quantum correlations.

Findings

Hawking radiation can completely stop in the model.

A disconnected remnant remains after evaporation.

Long tail of non-thermal correlation persists over time.

Abstract

The moving mirror model is designed to extract essential features of the black hole formation and the subsequent Hawking radiation by neglecting complication due to a finite curvature. We extend this approach to dynamically treat back reaction against the mirror motion due to Hawking radiation. It is found that a unique model in two spacetime dimensions exists in which Hawking radiation completely stops and the end point of evaporation contains a disconnected remnant. When viewed from asymptotic observers at one side of the spacetime, quantum mechanical correlation is recovered in the end. Although the thermal stage accompanying short range correlation may last for an arbitrarily long period, at a much longer time scale a long tail of non-thermal correlation is clearly detected.