Efficient quantum repeater based on deterministic Rydberg gates

authored by

Bo Zhao, Markus Müller, Klemens Hammerer, Peter Zoller

Abstract

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.

External Organisation(s)

University of Innsbruck
Austrian Academy of Sciences

Type

Article

Journal

Physical Review A - Atomic, Molecular, and Optical Physics

Volume

81

ISSN

1050-2947

Publication date

21.05.2010

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

Electronic version(s)

https://doi.org/10.1103/PhysRevA.81.052329 (Access: Unknown)