Related papers: Entanglement harvesting: state dependence and covariance

Entanglement harvesting: state dependence and covariance

URL: http://arxiv.org/abs/2208.13801v1
Date: Mon, 29 Aug 2022 18:00:03 GMT
Title: Entanglement harvesting: state dependence and covariance
Authors: H\'ector Maeso-Garc\'ia and Jos\'e Polo-G\'omez and Eduardo Mart\'in-Mart\'inez
Abstract summary: We analyze entanglement harvesting for arbitrary initial states of particle detectors. 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 theory.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
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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