Comment on ``Vanishing Hawking Radiation from a Uniformly Accelerated Black Hole'', P. Yi, Phys. Rev. Lett. 75 (1995) 382

TL;DR

This paper discusses how uniformly accelerated black holes emit Hawking radiation, aligning with the behavior of accelerated particles, and emphasizes the importance of transient and decoherence effects in understanding this phenomenon.

Contribution

It clarifies that accelerated black holes emit Hawking radiation consistent with Doppler shifts, highlighting the role of transient and decoherence effects in the analysis.

Findings

Accelerated black holes emit Doppler-shifted Hawking radiation.

Transient and decoherence effects are crucial in analyzing black hole radiation.

The emission aligns with the behavior of accelerated particles.

Abstract

We argue that the analysis of transients, of decoherence effects, or of any breaking of the exact boost invariance of the Ernst metric shows that uniformly accelerated black holes do emit an energy flux given by the Doppler-shifted Hawking radiation, in perfect {\it agreement} to what happens for accelerated particles.