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Operationalistic orthogonality condition for single-mode biphotons (qutrits)

  • Atoms, Spectra, Radiations
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Abstract

An arbitrary polarization state of a single-mode biphoton is considered. The operationalistic criterion is formulated for the orthogonality of these states. It can be used to separate a biphoton with an arbitrary degree of polarization from a set of biphotons orthogonal to it. This is necessary for the implementation of quantum cryptography protocol based on the three-level systems. The experimental test of this criterion amounts to the observation of the anticorrelation effect for a biphoton with an arbitrary polarization state.

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Authors and Affiliations

  1. Moscow State University, Vorob’evy gory, Moscow, 119899, Russia

    A. A. Zhukov, G. A. Maslennikov & M. V. Chekhova

Authors
  1. A. A. Zhukov
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  2. G. A. Maslennikov
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  3. M. V. Chekhova
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 76, No. 10, 2002, pp. 696–700.

Original Russian Text Copyright © 2002 by Zhukov, Maslennikov, Chekhova.

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Zhukov, A.A., Maslennikov, G.A. & Chekhova, M.V. Operationalistic orthogonality condition for single-mode biphotons (qutrits). Jetp Lett. 76, 596–599 (2002). https://doi.org/10.1134/1.1541042

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  • DOI: https://doi.org/10.1134/1.1541042

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