Phys. Rev. A 81, 052329 (2010) [5 pages]Efficient quantum repeater based on deterministic Rydberg gatesReceived 9 March 2010; published 21 May 2010 We propose an efficient quantum repeater architecture with mesoscopic atomic ensembles, where the Rydberg blockade is employed for deterministic local entanglement generation, entanglement swapping, and entanglement purification. Compared to a conventional atomic-ensemble-based quantum repeater, the entanglement distribution rate is improved by up to two orders of magnitude with the help of the deterministic Rydberg gate. This quantum repeater scheme is robust and fast, and thus opens up a way for practical long-distance quantum communication. © 2010 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.81.052329
DOI:
10.1103/PhysRevA.81.052329
PACS:
03.67.Hk, 03.67.Pp, 42.50.Ex
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