Remnant-free Moving Mirror Model for Black Hole Radiation Field

TL;DR

This paper studies moving mirror models that simulate black hole radiation, revealing how they produce thermal-like radiation with transient features and negative energy flux, contributing insights into black hole evaporation processes.

Contribution

It introduces a class of moving mirror trajectories as models for black hole radiation, highlighting their thermal behavior, transient features, and negative energy flux phenomena.

Findings

Mirror radiation fields follow thermal distributions for extended periods.

Transient emissions are brief and carry minimal net energy.

Negative energy flux is a common but not always prominent feature.

Abstract

We analyze the flow of energy and entropy emitted by a class of moving mirror trajectories which provide models for the radiation fields produced by black hole evaporation. The mirror radiation fields provide natural, concrete examples of processes that follow thermal distributions for long periods, accompanied by transients which are brief and carry little net energy, yet they ultimately represent pure quantum states. A burst of negative energy flux is a generic feature of these fields, but it need not be prominent.