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Unidimensional continuous-variable quantum key distribution using squeezed states

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73588221" target="_blank" >RIV/61989592:15310/18:73588221 - isvavai.cz</a>

  • Result on the web

    <a href="https://journals.aps.org/pra/pdf/10.1103/PhysRevA.98.032321" target="_blank" >https://journals.aps.org/pra/pdf/10.1103/PhysRevA.98.032321</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1103/PhysRevA.98.032321" target="_blank" >10.1103/PhysRevA.98.032321</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Unidimensional continuous-variable quantum key distribution using squeezed states

  • Original language description

    The possibility of using squeezed states in the recently suggested unidimensional continuous-variable quantum key distribution based on a single quadrature modulation is addressed. It is shown that squeezing of the signal states expands the physicality bounds of the effective entangled state shared between the trusted parties due to the antisqueezing noise in the unmodulated quadrature. Modulation of the antisqueezed quadrature, on the other hand, effectively shrinks the physicality bounds due to the squeezing in the unmodulated quadrature and also provides noise on the reference side of the protocol, thus limiting the possibility of eavesdropping in noisy channels. This strategy is practical for low-loss (i.e., short-distance) channels, especially if direct reconciliation scheme is applied.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10306 - Optics (including laser optics and quantum optics)

Result continuities

  • Project

    <a href="/en/project/LTC17086" target="_blank" >LTC17086: Quantum communication and quantum optomechanics for space-based applications</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    PHYSICAL REVIEW A

  • ISSN

    2469-9926

  • e-ISSN

  • Volume of the periodical

    98

  • Issue of the periodical within the volume

    3

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    7

  • Pages from-to

    "032321-1"-"032321-7"

  • UT code for WoS article

    000445171900005

  • EID of the result in the Scopus database

    2-s2.0-85053858075