Quantum Communication with Polarization-Encoded Qubits under Majorization Monotone Dynamics

Artur Czerwinski ()
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Artur Czerwinski: Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Torun, ul. Grudziadzka 5, 87-100 Torun, Poland

Mathematics, 2022, vol. 10, issue 21, 1-17

Abstract: 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.

Keywords: mathematical physics; quantum communication; quantum information; open quantum systems; majorization monotone dynamics; polarization of light; dephasing channel; trace distance (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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