Entanglement between accelerated probes in de Sitter spacetime varies independently with acceleration and curvature depending on detector motion configurations, unlike the single-probe effective-acceleration mapping.
Quantum teleportation in vacuum using only Unruh-DeWitt detectors
2 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
abstract
We consider entanglement extraction into two two-level Unruh-DeWitt detectors from a vacuum of a neutral massless quantum scalar field in a four-dimensional spacetime, where the general monopole coupling to the scalar field is assumed. Based on the reduced density matrix of the two detectors derived within the perturbation theory, we show that the single copy of the entangled pair of the detectors can be utilized in quantum teleportation even when the detectors are separated acausally, while we observe no violation of the Bell-CHSH inequality. In the case of the Minkowski vacuum, in particular, we find that entanglement usable in quantum teleportation is extracted due to the special relativistic effect when the detectors are in a relative inertial motion, while it is not when they are comoving inertially and the switching of the detectors is executed adiabatically at infinite past and future.
verdicts
UNVERDICTED 2representative citing papers
The reduced states of static UDW detectors coupled to a scalar field in alpha-vacua are derived analytically, revealing distinct behaviors of entanglement harvesting for time-like versus space-like separations and superhorizon suppression of quantum discord.
citing papers explorer
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Entanglement between accelerated probes in a de Sitter spacetime
Entanglement between accelerated probes in de Sitter spacetime varies independently with acceleration and curvature depending on detector motion configurations, unlike the single-probe effective-acceleration mapping.
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Entanglement Harvesting and Quantum Discord of Alpha Vacua in de Sitter Space
The reduced states of static UDW detectors coupled to a scalar field in alpha-vacua are derived analytically, revealing distinct behaviors of entanglement harvesting for time-like versus space-like separations and superhorizon suppression of quantum discord.