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UFN, 2021, Volume 191, Number 1, Pages 93–109 (Mi ufn6777)  

This article is cited in 1 scientific paper (total in 3 paper)

METHODOLOGICAL NOTES

Security of the decoy state method for quantum key distribution

A. S. Trushechkinab, E. O. Kiktenkoabcd, D. A. Kronbergacd, A. K. Fedorovcd*

a Steklov Mathematical Institute of Russian Academy of Sciences, Moscow
b National University of Science and Technology MISIS, Competence Center of the Quantum Communications National Technology Initiative, Moscow
c International Center for Quantum Optics and Quantum Technologies (Russian Quantum Center), Skolkovo, Moscow region
d Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow region

Abstract: Quantum cryptography or, more precisely, quantum key distribution (QKD), is one of the advanced areas in the field of quantum technologies. The confidentiality of keys distributed with the use of QKD protocols is guaranteed by the fundamental laws of quantum mechanics. This paper is devoted to the decoy state method, a countermeasure against vulnerabilities caused by the use of coherent states of light for QKD protocols whose security is proved under the assumption of single-photon states. We give a formal security proof of the decoy state method against all possible attacks. We compare two widely known attacks on multiphoton pulses: photon-number splitting and beam splitting. Finally, we discuss the equivalence of polarization and phase coding.

Funding Agency Grant Number
Ministry of Science and Higher Education of the Russian Federation
Russian Science Foundation 17-71-20146
The research was carried out within the state assignment of the Ministry of Science and Higher Education of the Russian Federation. Research was completed with the support of a grant from the Russian Science Foundation (project no. 17-71-20146).

* Author to whom correspondence should be addressed

DOI: https://doi.org/10.3367/UFNr.2020.11.038882

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English version:
Physics–Uspekhi, 2021, 64:1, 88–102

Bibliographic databases:

PACS: 03.67.-a, 03.67.Dd, 03.67.Hk
Received: March 23, 2020
Revised: October 19, 2020
Accepted: November 20, 2020

Citation: A. S. Trushechkin, E. O. Kiktenko, D. A. Kronberg, A. K. Fedorov, “Security of the decoy state method for quantum key distribution”, UFN, 191:1 (2021), 93–109; Phys. Usp., 64:1 (2021), 88–102

Citation in format AMSBIB
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\paper Security of the decoy state method for quantum key distribution
\jour UFN
\yr 2021
\vol 191
\issue 1
\pages 93--109
\mathnet{http://mi.mathnet.ru/ufn6777}
\crossref{https://doi.org/10.3367/UFNr.2020.11.038882}
\elib{https://elibrary.ru/item.asp?id=46770270}
\transl
\jour Phys. Usp.
\yr 2021
\vol 64
\issue 1
\pages 88--102
\crossref{https://doi.org/10.3367/UFNe.2020.11.038882}
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\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85104180459}


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    Citing articles on Google Scholar: Russian citations, English citations
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    This publication is cited in the following articles:
    1. Yu. N. Eroshenko, “Physics news on the Internet (based on electronic preprints)”, Phys. Usp., 64:2 (2021), 216–217  mathnet  crossref  crossref  isi
    2. Yu. N. Eroshenko, “Physics news on the Internet (based on electronic preprints)”, Phys. Usp., 64:6 (2021), 638–639  mathnet  crossref  crossref  elib
    3. Quantum Electron., 51:10 (2021), 928–937  mathnet  crossref  isi
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