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Stabilization of All Bell States in a Lossy Coupled-Cavity Array

A scheme is proposed to generate maximally entangled states of two [Formula: see text]-type atoms trapped in separate overdamped optical cavities using quantum-jump-based feedback. This proposal can stabilize not only the singlet state, but also the other three triplet states by alternating the detu...

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Detalles Bibliográficos
Autores principales: Liu, Bing, Li, Dong-Xiao, Shao, Xiao-Qiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7514889/
https://www.ncbi.nlm.nih.gov/pubmed/33267116
http://dx.doi.org/10.3390/e21040402
Descripción
Sumario:A scheme is proposed to generate maximally entangled states of two [Formula: see text]-type atoms trapped in separate overdamped optical cavities using quantum-jump-based feedback. This proposal can stabilize not only the singlet state, but also the other three triplet states by alternating the detuning parameter and relative phase of the classical fields. Meanwhile it is convenient to manipulate atoms, and much more robust against spontaneous emission of atoms. The parameters related to the potential experiment are analyzed comprehensively and it is confirmed that the quantum feedback technology is a significant tool for entanglement production with a high fidelity.