Matrix description for transformation of individual photons quantum states in sequence of unbalanced Mach-Zehnder interferometers

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Authors: Zadorin A. S., Mahorin D. A.

Annotation: A matrix model describing the system of several unbalanced Mach-Zehnder interferometers (MZI) used for forming and measuring time-bin qubit as superposition of time-shifted states of a single photon in output ports of system has been proposed. A quantum channel effect on time-bin qubit structure has been studied.

Keywords: quatnum gates, mach-zehnder interferometer, quantum channel, time-bin qubit, qutrit