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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Publisher's URL: http://dx.doi.org/10.1088/0305-4470/34/35/303
Abstract
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 |
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Status: | Published |
Refereed: | Yes |
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. |
ISSN: | 0305-4470 |
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