Quantum Radiation of a Uniformly Accelerated Refractive Body

TL;DR

This paper investigates quantum radiation emitted by a small, uniformly accelerated refractive body using a scalar field model, calculating energy flux corrections due to slight refractive index deviations.

Contribution

It introduces a perturbative approach to analyze quantum radiation from an accelerated refractive object, providing new insights into the energy flux in the wave zone.

Findings

Derived correction to the vacuum Hadamard function due to acceleration

Calculated the vacuum expectation of energy density flux

Discussed properties of quantum radiation in the wave zone

Abstract

We study quantum radiation generated by an accelerated motion of a small body with a refractive index n which differes slightly from 1. To simplify calculations we consider a model with a scalar massless field. We use the perturbation expansion in a small parameter n-1 to obtain a correction to the vacuum Hadamard function for a uniformly accelerated motion of the body. We obtain the vacuum expectation for the energy density flux in the wave zone and discuss its properties.