Towards long-distance continuous-variable quantum key distribution enforced by nonclassicality

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F12%3A33142128" target="_blank" >RIV/61989592:15310/12:33142128 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1117/12.974637" target="_blank" >http://dx.doi.org/10.1117/12.974637</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.974637" target="_blank" >10.1117/12.974637</a>

Result language
angličtina
Original language name
Towards long-distance continuous-variable quantum key distribution enforced by nonclassicality
Original language description
Quantum key distribution (QKD) protocols allow two trusted parties to distribute a cryptographic key which they can further use for the unconditionally secure classical communication. During the last decades the field has grown mature with the commercialprototypes being available. They mostly rely on the faint laser pulses implementing the protocols on the basis of single qubits and qubit pairs. Alternatively, the continuous-variable (CV) protocols based on the multi-photon states of light were developed recently. They are typically built using the quadrature modulation of the coherent or squeezed states and subsequent homodyne detection. In the case of Gaussian modulation the security of the protocols is based on the extremality of Gaussian states, which allows estimating bounds on the leaked information. The Gaussian CV QKD protocols were shown secure for any degree of channel attenuation, but are restricted by the channel noise. Moreover, the applicability of Gaussian CV QKD protoc
Czech name
—
Czech description
—

Project
<a href="/en/project/GPP205%2F10%2FP321" target="_blank" >GPP205/10/P321: Continuous variable quantum key broadcasting</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI
ISBN
978-0-8194-9283-8
ISSN
0277-786X
e-ISSN
—
Number of pages
7
Pages from-to
"85421L-1"-"85421L-7"
Publisher name
SPIE
Place of publication
Bellingham (OR)
Event location
Edinburgh, SCOTLAND
Event date
Sep 24, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000312346500044

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