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Proceedings Paper

Physical and architectural considerations in quantum repeaters
Author(s): M. Razavi; K. Thompson; H. Farmanbar; Ma. Piani; N. Lütkenhaus
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Paper Abstract

Quantum repeaters enable us to distribute entanglement between remote parties by relying on a network of quantum memory units that exhibit efficient coupling to light, scalability, and long coherence times. Entanglement is initially distributed between nearest neighbors and then extended to the far-end nodes using entanglement swapping techniques. For real-time applications, such as quantum key distribution, the above tasks must be repeated successively, according to a proper protocol, to generate entangled states at a certain rate. This paper studies a number of such protocols and the interplay between the rate of entanglement generation, the number of employed memories, and the coherence time of memory units.

Paper Details

Date Published: 26 January 2009
PDF: 13 pages
Proc. SPIE 7236, Quantum Communications Realized II, 723603 (26 January 2009); doi: 10.1117/12.811880
Show Author Affiliations
M. Razavi, Univ. of Waterloo (Canada)
K. Thompson, Univ. of Waterloo (Canada)
H. Farmanbar, Univ. of Waterloo (Canada)
Ma. Piani, Univ. of Waterloo (Canada)
N. Lütkenhaus, Univ. of Waterloo (Canada)

Published in SPIE Proceedings Vol. 7236:
Quantum Communications Realized II
Yasuhiko Arakawa; Masahide Sasaki; Hideyuki Sotobayashi, Editor(s)

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