Limits of atomic entanglement by cavity feedback: From weak to strong coupling - ENS - École normale supérieure Accéder directement au contenu
Article Dans Une Revue EPL - Europhysics Letters Année : 2016

Limits of atomic entanglement by cavity feedback: From weak to strong coupling

Résumé

We theoretically investigate the entangled states of an atomic ensemble that can be obtained via cavity feedback, varying the atom-light coupling from weak to strong, and including a systematic treatment of decoherence. In the strong-coupling regime for small atomic ensembles, the system is driven by cavity losses into a long-lived, highly entangled many-body state that we characterize analytically. In the weak-coupling regime for large ensembles, we find analytically the maximum spin-squeezing that can be achieved by optimizing both the coupling and the atom number. This squeezing is fundamentally limited by spontaneous emission to a constant value, which is independent of the atom number.
Fichier principal
Vignette du fichier
paper.pdf (237.31 Ko) Télécharger le fichier
supplementary_cavity_sq.pdf (456.88 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-01180415 , version 1 (27-07-2015)

Identifiants

Citer

Krzysztof Pawlowski, Jérôme Estève, Jakob Reichel, Alice Sinatra. Limits of atomic entanglement by cavity feedback: From weak to strong coupling. EPL - Europhysics Letters, 2016, 113 (34005), pp.4. ⟨hal-01180415⟩
140 Consultations
231 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More