Entanglement dynamics for Unruh-DeWitt detectors interacting with massive scalar fields: The Unruh and anti-Unruh effects

Abstract

We study, in the framework of open quantum systems, the entanglement dynamics for a quantum system composed of two uniformly accelerated Unruh-Dewitt detectors interacting with a bath of massive scalar fields in the Minkowski vacuum. We find that the entanglement evolution for the quantum system coupled with massive fields is always slower compared with that of the one coupled with massless fields, and this time-delay effect brought by the field being massive can however be counteracted by a large enough acceleration, in contrast to the case of a static quantum system in a thermal bath, where this time delay is not affected by the temperature. Remarkably, the maximal concurrence of the quantum system generated during evolution may increase with acceleration for any inter-detector separation while that for static ones in a thermal bath decreases monotonically with temperature, and this can be considered as an anti-Unruh effect in terms of the entanglement generated.

arXiv comment37 pages, 12 figures, published version

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Cited by in corpus (17)

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• Circular motion analogue Unruh effect in a $2+1$ thermal bath: Robbing from the rich and giving to the poor
• Effective master equations for two accelerated qubits
• Fate of entanglement between two Unruh-DeWitt detectors due to their motion and background temperature
• Entanglement dynamics in $\kappa$-deformed spacetime
• Entanglement harvesting of accelerated detectors versus static ones in a thermal bath
• Entanglement generation for uniformly accelerated atoms assisted by environment-induced interatomic interaction and the loss of the anti-Unruh effect
• Effect of spacetime dimensions on quantum entanglement between two uniformly accelerated atoms
• Dissipation suppression for an Unruh-DeWitt battery with a reflecting boundary
• Can the latent signatures of quantum superposition be detected through correlation harvesting?
• Cohering and decohering power of massive scalar fields under instantaneous interactions
• Enhanced anti-Unruh effect by simulated light-matter interactions
• Atom-field dynamics in curved spacetime
• Influence of field mass and acceleration on entanglement generation
• Canonical Quantization of the U(1) Gauge Field in the right Rindler-wedge in the Rindler Coordinates
• Reveal the lost entanglement for accelerated atoms in the high-dimensional spacetime
• Quantum regression theorem in the Unruh-DeWitt battery