Journal
MATHEMATICS
Volume 10, Issue 21, Pages -Publisher
MDPI
DOI: 10.3390/math10213932
Keywords
mathematical physics; quantum communication; quantum information; open quantum systems; majorization monotone dynamics; polarization of light; dephasing channel; trace distance
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This article explores the impact of majorization monotone dynamical maps on the efficiency of quantum communication and measures the quality of quantum communication using the discrimination probability.
Quantum communication can be realized by transmitting photons that carry quantum information. Due to decoherence, the information encoded in the quantum state of a single photon can be distorted, which leads to communication errors. In particular, we consider the impact of majorization monotone dynamical maps on the efficiency of quantum communication. The mathematical formalism of majorization is revised with its implications for quantum systems. The discrimination probability for two arbitrary orthogonal states is used as a figure of merit to track the quality of quantum communication in the time domain.
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