Feasibility of quantum key distribution with macroscopically bright coherent light
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73597125" target="_blank" >RIV/61989592:15310/19:73597125 - isvavai.cz</a>
Result on the web
<a href="https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-27-25-36154&id=423488" target="_blank" >https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-27-25-36154&id=423488</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OE.27.036154" target="_blank" >10.1364/OE.27.036154</a>
Alternative languages
Result language
angličtina
Original language name
Feasibility of quantum key distribution with macroscopically bright coherent light
Original language description
We address feasibility of continuous-variable quantum key distribution using bright multimode coherent states of light and homodyne detection. We experimentally verify the possibility to properly select signal modes by matching them with the local oscillator and this way to decrease the quadrature noise concerned with unmatched bright modes. We apply the results to theoretically predict the performance of continuous-variable quantum key distribution scheme using multimode coherent states in scenarios where modulation is applied either to all the modes or only to the matched ones, and confirm that the protocol is feasible at high overall brightness. Our results open the pathway towards full-scale implementation of quantum key distribution using bright light, thus bringing quantum communication closer to classical optics.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
OPTICS EXPRESS
ISSN
1094-4087
e-ISSN
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Volume of the periodical
27
Issue of the periodical within the volume
25
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
36154-36163
UT code for WoS article
000503978100011
EID of the result in the Scopus database
2-s2.0-85076444688