Entanglement of Uniformly Accelerating Schrodinger, Dirac, and Scalar Particles

TL;DR

This paper investigates how uniform acceleration affects quantum entanglement in particles, revealing that entanglement can transfer to antiparticles in fermionic systems but not in scalar particles, with implications for relativistic quantum information.

Contribution

It demonstrates the differential behavior of entanglement transfer in fermionic and scalar particles under uniform acceleration, highlighting the role of particle type in relativistic quantum systems.

Findings

Entanglement remains unchanged when all degrees of freedom are considered.

Fermionic entanglement transfers to antiparticles at high acceleration.

Scalar particles do not exhibit entanglement transfer to antiparticles.

Abstract

We study how the entanglement of an entangled pair of particles is affected when one or both of the pair is uniformly accelerated, while the detector remains in an inertial frame. We find that the entanglement is unchanged if all degrees of freedom are considered. However, particle pairs are produced when a relativistic particle is accelerated, and more bipartite systems emerge, the entanglements of some of which may change as the acceleration. In particular, the entanglement of a pair of accelerating fermions is transferred preferentially to the produced antiparticles when the acceleration is large, and the entanglement transfer is complete when the acceleration approaches infinity. However, no such entanglement transfer to the antiparticles is observed for scalar particles.