Motion generates entanglement

TL;DR

This paper shows how motion, specifically nonuniform acceleration, can generate entanglement between quantum field modes, with implications for understanding gravitational effects on quantum systems.

Contribution

It provides a detailed analysis of entanglement generation in nonuniformly accelerated cavities for scalar and spinor fields, highlighting the influence of initial states and statistics.

Findings

Entanglement can be generated by motion in accelerated cavities.

The effect varies with initial states, mode choices, and particle statistics.

Results suggest a gravitational analog for entanglement creation.

Abstract

We demonstrate entanglement generation between mode pairs of a quantum field in a nonuniformly accelerated cavity in Minkowski space-time. The effect is sensitive to the initial state, the choice of the mode pair and bosonic versus fermionic statistics, and it can be stronger by orders of magnitude than the entanglement degradation between a nonuniformly accelerated cavity and an inertial cavity. Detailed results are obtained for massless scalar and spinor fields in (1+1) dimensions. By the equivalence principle, the results provide a model of entanglement generation by gravitational effects.