Unruh radiation and Interference effect

TL;DR

This paper reviews the calculation of Unruh radiation emitted by an accelerated charged particle, emphasizing the interference effects between vacuum fluctuations and radiation, using a stochastic approach.

Contribution

It introduces a stochastic method to analyze Unruh radiation and highlights the role of interference effects, which are less explored in prior studies.

Findings

Interference effects significantly influence Unruh radiation.

Stochastic treatment provides new insights into radiation behavior.

Analysis clarifies the interplay between vacuum fluctuations and emitted radiation.

Abstract

A uniformly accelerated charged particle feels the vacuum as thermally excited and fluctuates around the classical trajectory. Then we may expect additional radiation besides the Larmor radiation. It is called Unruh radiation. In this report, we review the calculation of the Unruh radiation with an emphasis on the interference effect between the vacuum fluctuation and the radiation from the fluctuating motion. Our calculation is based on a stochastic treatment of the particle under a uniform acceleration. The basics of the stochastic equation are reviewed in another report in the same proceeding. In this report, we mainly discuss the radiation and the interference effect.