Quantum entanglement and classical communication through a depolarising channel
arXiv:quant-ph/9903033 · doi:10.1080/09500340008244045
Abstract
We analyse the role of entanglement for transmission of classical information through a memoryless depolarising channel. Using the isotropic character of this channel we prove analytically that the mutual information cannot be increased by encoding classical bits into entangled states of two qubits.
6 pages, 2 figures; contribution to special issue of JMO on the physics of quantum information; 2nd version: slight modifications and improved presentation
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Cited by in corpus (34)
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