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arXiv · 2208.13801

Entanglement harvesting: state dependence and covariance

Héctor Maeso-García·José Polo-Gómez·Eduardo Martín-Martínez
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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.

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Héctor Maeso-García, José Polo-Gómez, Eduardo Martín-Martínez. 2022-08-29. Entanglement harvesting: state dependence and covariance. https://doi.org/10.1103/physrevd.106.105001

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