Fidelity and the communication of quantum information

Barnett, S.M., Gilson, C.R. and Sasaki, M. (2001) Fidelity and the communication of quantum information. Journal of Physics A: Mathematical and General, 34(35), pp. 6755-6766. (doi: 10.1088/0305-4470/34/35/303)

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We compare and contrast the error probability and fidelity as measures of the quality of the receiver's measurement strategy for a quantum communications system. The error probability is a measure of the ability to retrieve <i>classical</i> information and the fidelity measures the retrieval of <i>quantum</i> information. We present the optimal measurement strategies for maximizing the fidelity given a source that encodes information on the symmetric qubit-states.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Gilson, Dr Claire
Authors: Barnett, S.M., Gilson, C.R., and Sasaki, M.
Subjects:Q Science > QA Mathematics
College/School:College of Science and Engineering > School of Mathematics and Statistics > Mathematics
Journal Name:Journal of Physics A: Mathematical and General
Publisher:Institute of Physics Publishing Ltd.

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