Quantum entanglement and classical communication through a depolarizing channel
- 15 February 2000
- journal article
- research article
- Published by Taylor & Francis in Journal of Modern Optics
- Vol. 47 (2-3) , 325-331
- https://doi.org/10.1080/095003400148231
Abstract
We analyse the role of entanglement for transmission of classical information through a memoryless depolarizing 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.Keywords
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