Entanglement generation in relativistic cavity motion

TL;DR

This paper investigates how relativistic motion of a cavity can generate entanglement and mode mixing in a quantum field, proposing feasible experimental setups to observe these relativistic quantum effects.

Contribution

It introduces a detailed analysis of particle creation and mode mixing in relativistically moving cavities, highlighting potential experimental detection methods.

Findings

Mode mixing resonance frequencies are below particle creation frequencies.

Relativistic cavity motion can generate detectable entanglement.

Proposes a feasible experimental scenario for observing these effects.

Abstract

We analyse particle creation and mode mixing for a quantum field in an accelerated cavity, assuming small accelerations but allowing arbitrary velocities, travel times and travel distances, and in particular including the regime of relativistic velocities. As an application, we identify a desktop experimental scenario where the mode mixing resonance frequency in linear sinusoidal motion or in uniform circular motion is significantly below the particle creation resonance frequencies of the Dynamical Casimir Effect, and arguably at the threshold of current technology. The mode mixing acts as a beamsplitter quantum gate, experimentally detectable not only via fluxes or particle numbers but also via entanglement generation.