Entanglement harvesting of inertially moving Unruh-DeWitt detectors in Minkowski spacetime

Author(s)
C. Suryaatmadja, R. B. Mann, W. Cong
Abstract

We investigate the effects of relative motion on entanglement harvesting by considering a pair of Unruh-Dewitt detectors moving at arbitrary but independent and constant velocities, both linearly interacting with a massless scalar field vacuum in four-dimensional Minkowski spacetime. Working within the weak coupling approximation, we find that the negativity is a (nonelementary) function of the relative velocity of the detectors, as well as their energy gaps and minimal separation. We find parameter regions where negativity increases with velocity up to a maximum and then decreases, reaching zero at some sublight velocity. At any given relative velocity, the harvested entanglement is inversely correlated with the detector energy gap (at sufficiently high values) and the distance of closest approach of two detectors.

Organisation(s)
Gravitational Physics
External organisation(s)
University of Waterloo (UW)
Journal
Physical Review D
Volume
106
No. of pages
12
ISSN
2470-0010
DOI
https://doi.org/10.1103/PhysRevD.106.076002
Publication date
10-2022
Peer reviewed
Yes
Austrian Fields of Science 2012
103025 Quantum mechanics, 103028 Theory of relativity
ASJC Scopus subject areas
Nuclear and High Energy Physics
Portal url
https://ucrisportal.univie.ac.at/en/publications/entanglement-harvesting-of-inertially-moving-unruhdewitt-detectors-in-minkowski-spacetime(d9687e13-3c06-4b85-bf40-4fc04e162105).html