Entanglement harvesting: state dependence and covariance
arXiv:2208.13801 · doi:10.1103/PhysRevD.106.105001
Abstract
We analyze entanglement harvesting for arbitrary initial states of particle detectors and arbitrary quasifree states of the field. Despite the fact that spatially smeared particle detectors are known to break covariance for arbitrary initial states, we show that the entanglement harvested by a pair of detectors from a quasifree state of a scalar field is a covariant quantity up to second order in perturbation theory.
7 Pages. RevTeX 4.2
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Cited by in corpus (5)
- Non-perturbative method for particle detectors with continuous interactions
- Extraction of entanglement from quantum fields with entangled particle detectors
- Interference of communication and field correlations in entanglement harvesting
- Harvesting Contextuality from the Vacuum
- Bipartite and tripartite entanglement in pure dephasing relativistic spin-boson model