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Hybrid noiseless subsystems for quantum communication over optical fibers

Jonathan L. Ball·Konrad Banaszek
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Abstract

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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Jonathan L. Ball, Konrad Banaszek. 2004-10-11. Hybrid noiseless subsystems for quantum communication over optical fibers. https://doi.org/10.1088/0305-4470/39/1/l01

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