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arXiv · 0810.1726

How to Maximize the Capacity of General Quantum Noisy Channels

Goren Gordon·Gershon Kurizki
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Abstract

A general quantum noisy channel is analyzed, wherein the transmitted qubits may experience symmetry-breaking decoherence, along with memory effects. We find the optimal basis not to be fully entangled, but a combination of factorized and partially-entangled states in the presence of memory, asymmetry and the state-bias of the noise. Capacity-maximization is shown to be achievable by combining temporal shaping of the transmitted qubits and optimal basis selection.

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Goren Gordon, Gershon Kurizki. 2008-10-09. How to Maximize the Capacity of General Quantum Noisy Channels. https://doi.org/10.1002/prop.200900095

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