作者
Yang Han, Bing He, Khabat Heshami, Cheng-Zu Li, Christoph Simon
发表日期
2010/5/11
期刊
Physical Review A
卷号
81
期号
5
页码范围
052311
出版商
American Physical Society
简介
We propose a scheme for realizing quantum repeaters with Rydberg-blockade-coupled atomic ensembles, based on a recently proposed collective encoding strategy. Rydberg-blockade-mediated two-qubit gates and efficient cooperative photon emission are employed to create ensemble-photon entanglement. Thanks to deterministic entanglement swapping operations via Rydberg-based two-qubit gates, and to the suppression of multiexcitation errors by the blockade effect, the entanglement distribution rate of the present scheme is higher by orders of magnitude than the rates achieved by other ensemble-based repeaters. We also show how to realize temporal multiplexing with this system, which offers an additional speedup in entanglement distribution.
引用总数
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学术搜索中的文章
Y Han, B He, K Heshami, CZ Li, C Simon - Physical Review A—Atomic, Molecular, and Optical …, 2010