Geometric discord of quantum states of fermionic system in accelerated frame

TL;DR

This paper studies how geometric discord, a measure of quantum correlations, behaves for fermionic systems in accelerated frames, revealing conditions under which it vanishes or persists at infinite acceleration.

Contribution

It analyzes the geometric discord of fermionic quantum states in accelerated frames beyond the single-mode approximation, showing its dependence on the considered regions and particle-antiparticle configurations.

Findings

Geometric discord can vanish or persist at infinite acceleration depending on the region and particle-antiparticle considerations.

The discord does not disappear for certain entangled states in accelerated frames.

Behavior of quantum correlations varies with the region and particle type in the fermionic system.

Abstract

In this article, we investigate the geometric discord of quantum states of fermionic system in accelerated frame. It is shown by the method beyond the single-mode approximation, depending on the region considered, that the geometric discord for the entangled quantum states of fermionic system in accelerated frame can vanish or be retained at the infinite acceleration limit: it does not disappear when the quantum state of the particle(Alice)-particle(Bob in region I) case or the particle(Alice)-antiparticle(Bob in region II) is considered and it disappears when the particle(Alice)-antiparticle(Bob in region I) case or the particle(Alice)-particle(Bob in region II) one is considered.