2010/03/03 by Fang-Yu Hong, Shi‐Jie Xiong, Hong, Fang-Yu +5
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Physics (quant-ph) #quant-ph
paper · pdf · doi:10.48550/arxiv.1003.0736
4 pages, 1 figures
arxiv created 2010/03/03 · openalex publication_date 2010/03/03 · arxiv updated 2010/03/05 · openalex created_date 2019/06/27 · openalex updated_date 2026/07/28
In the famous quantum communication scheme developed by Duan \it et al.[L.M. Duan, M.D. Lukin, J.I. Cirac, and P. Zoller, Nature (London) \bf 414 413 (2001)], the probability of successful generating a symmetric collective atomic state with a single-photon emitted have to be far smaller than 1 to obtain an acceptable entangled state. Because of strong dipole-dipole interaction between two Rydberg atoms, more than one simultaneous excitations in an atomic ensembles are greatly suppressed, which makes it possible to excite a mesoscopic cold atomic ensemble into a singly-excited symmetric collective state accompanied by a signal photon with near unity success probability, at the same higher-order excitations can be significantly inhibited.