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.
arXiv comment7 Pages. RevTeX 4.2
References in corpus (35)
- A computable measure of entanglement
- Holographic Derivation of Entanglement Entropy from AdS/CFT
- Entanglement Entropy and Quantum Field Theory
- Entanglement entropy and conformal field theory
- Notes on Some Entanglement Properties of Quantum Field Theory
- Entanglement from the vacuum
- Violating Bell's inequalities in the vacuum
- Entangling Power of an Expanding Universe
- Harvesting correlations from the quantum vacuum
- Acceleration-assisted entanglement harvesting and rangefinding
- Entanglement harvesting from the electromagnetic vacuum with hydrogenlike atoms
- Spacetime structure and vacuum entanglement
- Harvesting Entanglement from the Black Hole Vacuum
- Cosmological quantum entanglement
- Causality issues of particle detector models in QFT and Quantum Optics
- Sustainable entanglement production from a quantum field
- General Relativistic Quantum Optics: Finite-size particle detector models in curved spacetimes
- Entangling detectors in anti-de Sitter space
- Broken covariance of particle detector models in relativistic quantum information
- Harvesting correlations from thermal and squeezed coherent states
- When entanglement harvesting is not really harvesting
- Unruh-DeWitt detectors and entanglement: the anti-de Sitter space
- Effects of Horizons on Entanglement Harvesting
- Entanglement Harvesting with Moving Mirrors
- Relativistic causality in particle detector models: Faster-than-light signalling and "Impossible measurements"
- Entanglement of the Vacuum between Left, Right, Future, and Past: The Origin of Entanglement-Induced Quantum Radiation
- Entanglement harvesting in the presence of a reflecting boundary
- Long-range entanglement in the Dirac vacuum
- New techniques for entanglement harvesting in flat and curved spacetimes
- Bandlimited Entanglement Harvesting
- Harvesting entanglement from complex scalar and fermionic fields with linearly coupled particle detectors
- Quantum Seismology
- Spacetime Entanglement Entropy in 1+1 Dimensions
- All coherent field states entangle equally
- Measurements in QFT: Weakly coupled local particle detectors and entanglement harvesting
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- Non-perturbative method for particle detectors with continuous interactions
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- 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