Quantum Correlations and Coherence in a Moving Unruh-deWitt Detector

TL;DR

This paper studies how acceleration affects quantum correlations and coherence in Unruh-deWitt detectors, revealing entanglement loss at high acceleration while some quantum properties persist, influenced by temperature and energy parameters.

Contribution

It provides new insights into the behavior of quantum correlations and coherence under acceleration, especially the persistence of certain quantum features despite entanglement loss.

Findings

Entanglement vanishes at infinite acceleration.

Quantum coherence remains nonzero despite entanglement loss.

Unruh temperature influences quantum correlations.

Abstract

In this paper, we investigate the quantum correlations and coherence of two accelerating Unruh-deWitt detectors coupled to a scalar field in 3 + 1 Minkowski space-time. We show that the entanglement is completely destroyed in the limit of infinite acceleration while the local quantum uncertainty and l1-norm of coherence remain nonzero. In addition, we also highlight the role of Unruh temperature and energy spacing of detectors on quantum correlations for different choices of initial states.