Continuous variable quantum key distribution with modulated entangled states
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F12%3A33140115" target="_blank" >RIV/61989592:15310/12:33140115 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1038/ncomms2097" target="_blank" >http://dx.doi.org/10.1038/ncomms2097</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/ncomms2097" target="_blank" >10.1038/ncomms2097</a>
Alternative languages
Result language
angličtina
Original language name
Continuous variable quantum key distribution with modulated entangled states
Original language description
Quantum key distribution enables two remote parties to grow a shared key, which they can use for unconditionally secure communication over a certain distance. The maximal distance depends on the loss and the excess noise of the connecting quantum channel. Several quantum key distribution schemes based on coherent states and continuous variable measurements are resilient to high loss in the channel, but are strongly affected by small amounts of channel excess noise. Here we propose and experimentally address a continuous variable quantum key distribution protocol that uses modulated fragile entangled states of light to greatly enhance the robustness to channel noise. We experimentally demonstrate that the resulting quantum key distribution protocol cantolerate more noise than the benchmark set by the ideal continuous variable coherent state protocol. Our scheme represents a very promising avenue for extending the distance for which secure communication is possible.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BH - Optics, masers and lasers
OECD FORD branch
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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
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nature Communications
ISSN
2041-1723
e-ISSN
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Volume of the periodical
3
Issue of the periodical within the volume
záží
Country of publishing house
GB - UNITED KINGDOM
Number of pages
6
Pages from-to
"1038-1"-"1038-6"
UT code for WoS article
000309338100050
EID of the result in the Scopus database
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