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Quantum-channel capacity of very noisy channels

✍ Scribed by DiVincenzo, David P.; Shor, Peter W.; Smolin, John A.


Book ID
126154484
Publisher
The American Physical Society
Year
1998
Tongue
English
Weight
234 KB
Volume
57
Category
Article
ISSN
1050-2947

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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 examine generalized Bell‐basis and find that the optimal basis is not the fully entangled one, but a combination of factorized and part