Quantum correlations and coherence in a moving Unruh–deWitt detector

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. •The quantum correlations and coherence of two accelerating Unruh–deWitt detectors coupled to a scalar field in 3+1 Minkowski space–time are investigated.•The robustness of skew-information measures and coherence against Unruh temperature is studied.•The difference exhibited by quantum correlation behaviors in the static and accelerating system are highlighted.