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Optics and Spectroscopy, 2020, Volume 128, Issue 8, Pages 1171–1176
DOI: https://doi.org/10.21883/OS.2020.08.49716.83-20 (Mi os339) 		 
Quantum optics

Unambiguous discrimination between coherent states of the two-mode optical field

M. M. Eskandari, D. B. Horoshko, S. Ya. Kilin

B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk
Full-text PDF (171 kB)
DOI: https://doi.org/10.21883/OS.2020.08.49716.83-20
Abstract: The procedure of quantum measurement–unambiguous discrimination–of four two-mode coherent states of the optical field which are of interest for information transmission by the optical communication channel is studied. It is shown that complex conjugation of the amplitude of one of the modes leads to better discriminability between the states. An interferometric scheme for unambiguous discrimination between such states is proposed and the probability of successful discrimination is found. Applications of the considered set of states in quantum cryptography, quantum teleportation, and optical communication with a high level of losses are discussed.
Keywords: quantum measurements, unambiguous discrimination between states, quantum cryptography, quantum communication channel.
Funding agency Grant number
Belarusian Republican Foundation for Fundamental Research Ф20КИ-035
This work was supported by the Belarusian Republican Foundation for Fundamental Research, project no. F20KI-035.
Received: 11.03.2020
Revised: 11.03.2020
Accepted: 28.03.2020
English version:
Optics and Spectroscopy, 2020, Volume 128, Issue 8, Pages 1193–1198
DOI: https://doi.org/10.1134/S0030400X20080111
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: M. M. Eskandari, D. B. Horoshko, S. Ya. Kilin, “Unambiguous discrimination between coherent states of the two-mode optical field”, Optics and Spectroscopy, 128:8 (2020), 1171–1176; Optics and Spectroscopy, 128:8 (2020), 1193–1198
Citation in format AMSBIB
\Bibitem{EskHorKil20}
\by M.~M.~Eskandari, D.~B.~Horoshko, S.~Ya.~Kilin
\paper Unambiguous discrimination between coherent states of the two-mode optical field
\jour Optics and Spectroscopy
\yr 2020
\vol 128
\issue 8
\pages 1171--1176
\mathnet{http://mi.mathnet.ru/os339}
\crossref{https://doi.org/10.21883/OS.2020.08.49716.83-20}
\elib{https://elibrary.ru/item.asp?id=44045924}
\transl
\jour Optics and Spectroscopy
\yr 2020
\vol 128
\issue 8
\pages 1193--1198
\crossref{https://doi.org/10.1134/S0030400X20080111}
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