Simulation of Quantum Tomography Process of Biphoton Polarization States on a Quantum Computer

Manko, S.D.; Frolovtsev, D.N.; Magnitsky, S.A.

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 17 августа 2021 г.

Авторы: Manko S.D., Frolovtsev D.N., Magnitsky S.A.
Журнал: Moscow University Physics Bulletin
Том: 76
Номер: 2
Год издания: 2021
Издательство: Allerton Press
Местоположение издательства: New York, N.Y., United States
Первая страница: 97
Последняя страница: 103
DOI: 10.3103/s0027134921020065
Аннотация: The process of quantum tomography of polarization-entangled photon pairs was simulated on quantum computers of different generations of the IBM Q Experience platform. The simulation was carried out for all four two-qubit Bell states. It turned out that the contribution of basis states that are absent in Bell states does not exceed 10% even on quantum computers of the first generations, and is reduced to several percent on quantum computers of the latest generation. The simulation quality was evaluated using Fidelity. The Fidelity values were in a range of 68.6–94.9%, depending on the generation of computers. It was shown that for Bell states Fidelity can be calculated using three tomographic measurements instead of the nine required for determination of the density matrix using quantum state tomography.
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