FIELD: quantum optics; quantum information.
SUBSTANCE: invention relates to methods of implementing quantum computational algorithms using linear optical devices. System and method for solving applied problems of materials science by interfacing quantum and classical devices are based on using an interferometer to perform linear-optical transformations over quantum states of photons, equipped with feedback lines, connected to a measuring unit of a first type for measuring states of photons and a measuring unit of a second type, made with possibility of measuring average values of product of single-qubit operators on quantum states of photons, measuring basis change according to the signal from the control input of the measuring unit of the second type; to measuring units of the first and second type, interferometer is connected to a computer configured to calculate the result of the step of the quantum variation algorithm and the interferometer.
EFFECT: invention reduces time spent on solving problems using quantum variational algorithms on a linear optical platform.
4 cl, 9 dwg
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