Hybrid noiseless subsystems for quantum communication over optical fibers

Details Hybrid noiseless subsystems for quantum communication over optical fibers Hybrid noiseless subsystems for quantum communication over optical fibers

2004-10-11

arxiv.org/abs/quant-ph/0410077v1

J. Phys. A: Math. Gen. 39, L1-L7 (2006)

Physics

Quantum Physics

5 pages, 1 figure

Scientific paper

10.1088/0305-4470/39/1/L01

We derive the general structure of noiseless subsystems for optical radiation contained in a sequence of pulses undergoing collective depolarization in an optical fiber. This result is used to identify optimal ways to implement quantum communication over a collectively depolarizing channel, which in general combine various degrees of freedom, such as polarization and phase, into joint hybrid schemes for protecting quantum coherence.

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