Gaussian postselection and virtual noiseless amplification in continuous-variable quantum key distribution
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F12%3A33141464" target="_blank" >RIV/61989592:15310/12:33141464 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevA.86.060302" target="_blank" >http://dx.doi.org/10.1103/PhysRevA.86.060302</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.86.060302" target="_blank" >10.1103/PhysRevA.86.060302</a>
Alternative languages
Result language
angličtina
Original language name
Gaussian postselection and virtual noiseless amplification in continuous-variable quantum key distribution
Original language description
Noiseless amplification or attenuation are two heralded filtering operations that enable amplifying or deamplifying a quantum state of light with no added noise, at the cost of a small success probability. We show that inserting such noiseless operationsin a transmission line improves the performances of continuous-variable quantum key distribution over this line. Remarkably, these noiseless operations do not need to be physically implemented but can simply be simulated in the classical data postprocessing stage. Hence, virtual noiseless amplification or attenuation amounts to performing a Gaussian postselection, which enhances the secure range or tolerable excess noise while keeping the benefits of Gaussian security proofs.
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
<a href="/en/project/GAP205%2F12%2F0577" target="_blank" >GAP205/12/0577: Reliable highly nonlinear quantum information processing of light</a><br>
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
Physical Review A
ISSN
1050-2947
e-ISSN
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Volume of the periodical
86
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
"060302-1"-"060302-5"
UT code for WoS article
000312829800001
EID of the result in the Scopus database
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