Everything is a "matter" of perspective: the Unruh effect

TL;DR

This paper explores the Unruh effect from different observer perspectives, emphasizing antiparticles in the radiation, and proposes experimental methods to detect these antiparticles, extending previous interpretations.

Contribution

It offers a new derivation of vacuum energy in Rindler space and suggests experimental detection of antiparticles in Unruh radiation, expanding understanding of observer-dependent quantum effects.

Findings

Antiparticles are present in Unruh radiation.

A new derivation of Rindler vacuum energy using Schrödinger kernel.

Proposal for experimental detection of antiparticles in Unruh radiation.

Abstract

In this work we examine and extend the proposal of reference \cite{Rosabal:2018hkx}, concerning the new interpretation on the Unruh effect. The vacuum processes in Minkowski and Rindler space are described in detail, in connection with the observers perspective. We highlight the presence of antiparticles in the radiation, which is perhaps the main observation in the cited reference. We present a new derivation of the vacuum energy in Rindler space using the Schr\"odinger kernel. The quest for the Unruh radiation could be expanded by considering the possibility of detecting the antiparticles in it. A proposal for the experimental confirmation of the antiparticles in the radiation is presented.