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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

D - Stať ve sborníku

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

—

Projekt

<a href="/cs/project/GPP205%2F10%2FP321" target="_blank" >GPP205/10/P321: Vysílaní kvantové klíče se spojitými proměnnými</a><br>

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI

ISBN

978-0-8194-9283-8

ISSN

0277-786X

e-ISSN

—

Počet stran výsledku

7

Strana od-do

"85421L-1"-"85421L-7"

Název nakladatele

SPIE

Místo vydání

Bellingham (OR)

Místo konání akce

Edinburgh, SCOTLAND

Datum konání akce

24. 9. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000312346500044