Generating long-lived entangled states with free-space collective
spontaneous emission
- URL: http://arxiv.org/abs/2110.15033v1
- Date: Thu, 28 Oct 2021 11:35:21 GMT
- Title: Generating long-lived entangled states with free-space collective
spontaneous emission
- Authors: Alan C. Santos, Andr\'e Cidrim, Celso J. Villas-Boas, Robin Kaiser,
Romain Bachelard
- Abstract summary: 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.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- 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.
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