Entanglement Generation by Electric Field Background

TL;DR

This paper explores how external electric fields can generate quantum entanglement through the Schwinger pair production process, analyzing differences between scalar and fermionic particles under various conditions.

Contribution

It introduces the concept of electric field-induced entanglement via Schwinger pair production and compares entanglement dynamics for different particle types and field configurations.

Findings

Entanglement varies with electric field parameters for scalar and fermionic particles.

Both constant and pulsed electric fields can produce measurable entanglement.

Differences in entanglement behavior between bosonic and fermionic modes are observed.

Abstract

The quantum vacuum is unstable under the influence of an external electric field and decays into pairs of charged particles, a process which is known as the Schwinger pair production. We propose and demonstrate that this electric field can generate entanglement. Using the Schwinger pair production for constant and pulsed electric fields, we study entanglement for scalar particles with zero spins and Dirac fermions. One can observe the variation of the entanglement produced for bosonic and fermionic modes with respect to different parameters.