Multiplexed Memory-Insensitive Quantum Repeaters

Details Multiplexed Memory-Insensitive Quantum Repeaters Multiplexed Memory-Insensitive Quantum Repeaters

2006-10-06

arxiv.org/abs/quant-ph/0610036v2

Physical Review Letters 98, 060502 (2007)

Physics

Quantum Physics

5 pages, 4 figures. Accepted for publication in PRL

Scientific paper

10.1103/PhysRevLett.98.060502

Long-distance quantum communication via distant pairs of entangled quantum bits (qubits) is the first step towards more secure message transmission and distributed quantum computing. To date, the most promising proposals require quantum repeaters to mitigate the exponential decrease in communication rate due to optical fiber losses. However, these are exquisitely sensitive to the lifetimes of their memory elements. We propose a multiplexing of quantum nodes that should enable the construction of quantum networks that are largely insensitive to the coherence times of the quantum memory elements.

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