Would quantum entanglement be increased by anti-Unruh effect?

Abstract

We study the "anti-Unruh effect" for an entangled quantum state in reference to the counterintuitive cooling previously pointed out for an accelerated detector coupled to the vacuum. We show that quantum entanglement for an initially entangled (spacelike separated) bipartite state can be increased when either a detector attached to one particle is accelerated or both detectors attached to the two particles are in simultaneous accelerations. However, if the two particles (e.g., detectors for the bipartite system) are not initially entangled, entanglement cannot be created by the anti-Unruh effect. Thus, within certain parameter regime, this work shows that the anti-Unruh effect can be viewed as an amplification mechanism for quantum entanglement.

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Cited by in corpus (20)

• Entanglement harvesting for Unruh-DeWitt detectors in circular motion
• The BTZ black hole exhibits anti-Hawking phenomena
• Entanglement dynamics for Unruh-DeWitt detectors interacting with massive scalar fields: The Unruh and anti-Unruh effects
• Role of thermal field in entanglement harvesting between two accelerated Unruh-DeWitt detectors
• Circular motion analogue Unruh effect in a $2+1$ thermal bath: Robbing from the rich and giving to the poor
• Basis-independent quantum coherence and its distribution under relativistic motion
• Entanglement harvesting from conformal vacuums between two Unruh-DeWitt detectors moving along null paths
• Fate of entanglement between two Unruh-DeWitt detectors due to their motion and background temperature
• Entanglement harvesting between two inertial Unruh-DeWitt detectors from non-vacuum quantum fluctuations
• Genuine multipartite entanglement subject to the Unruh and anti-Unruh effects
• Influence of acceleration on multi-body entangled quantum states
• Effect of spacetime dimensions on quantum entanglement between two uniformly accelerated atoms
• Anti-Unruh effect in the thermal background
• Enhanced anti-Unruh effect by simulated light-matter interactions
• Change of quantum correlation for two simultaneously accelerated observers
• Canonical Quantization of the U(1) Gauge Field in the right Rindler-wedge in the Rindler Coordinates
• Influence of gravitational waves on quantum multibody states
• Reveal the lost entanglement for accelerated atoms in the high-dimensional spacetime
• Quantum direct cause across the Cherenkov threshold in circuit QED
• Entanglement is protected by acceleration-induced transparency in thermal field