On Horizonless Temperature with an Accelerating Mirror

TL;DR

This paper introduces a novel moving mirror model that emits thermal radiation without an acceleration horizon, providing insights into black hole analogs and potential remnants, challenging traditional horizon-based thermal emission theories.

Contribution

It presents a new unitary moving mirror solution that produces thermal radiation without an acceleration horizon, linking it to black hole formation and remnants.

Findings

Produces finite energy and thermal radiation without an acceleration horizon

Approaches the speed of light, modeling black hole formation from null shell collapse

Suggests a possible black hole remnant scenario at sub-light speeds

Abstract

A new solution of a unitary moving mirror is found to produce finite energy and emit thermal radiation despite the absence of an acceleration horizon. In the limit that the mirror approaches the speed of light, the model corresponds to a black hole formed from the collapse of a null shell. For speeds less than light, the black hole correspondence, if it exists, is that of a remnant.