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 classical information and the fidelity measures the retrieval of quantum information. We present the optimal measurement strategies for maximizing the fidelity given a source that encodes information on the symmetric qubit-states.
Original language | English |
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Pages (from-to) | 6755-6766 |
Number of pages | 11 |
Journal | Journal of Physics A: Mathematical and Theoretical |
Volume | 34 |
Issue number | 35 |
DOIs | |
Publication status | Published - 24 Aug 2001 |
Keywords
- fidelity
- quantum information
- optics
- qubit
- quantum communication