Generating long-lived entangled states with free-space collective spontaneous emission
Quantum Physics
2022-05-25 v1
Abstract
Considering the paradigmatic case of a cloud of two-level atoms interacting through common vacuum modes, we show how cooperative spontaneous emission, which is at the origin of superradiance, leads the system to long-lived entangled states at late times. These subradiant modes are characterized by an entanglement between all particles, independently of their geometrical configuration. While there is no threshold on the interaction strength necessary to entangle all particles, stronger interactions lead to longer-lived entanglement.
Keywords
Cite
@article{arxiv.2110.15033,
title = {Generating long-lived entangled states with free-space collective spontaneous emission},
author = {Alan C. Santos and André Cidrim and Celso J. Villas-Boas and Robin Kaiser and Romain Bachelard},
journal= {arXiv preprint arXiv:2110.15033},
year = {2022}
}
Comments
6 pages and 4 figures + Supplemental Material