Quantum communication with macroscopically bright nonclassical states

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33155041" target="_blank" >RIV/61989592:15310/15:33155041 - isvavai.cz</a>
Result on the web
<a href="https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-23-24-31534&id=332871" target="_blank" >https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-23-24-31534&id=332871</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OE.23.031534" target="_blank" >10.1364/OE.23.031534</a>

Result language
angličtina
Original language name
Quantum communication with macroscopically bright nonclassical states
Original language description
We analyze homodyne detection of macroscopically bright multimode nonclassical states of light and propose their application in quantum communication. We observe that the homodyne detection is sensitive to a mode-matching of the bright light to the highly intense local oscillator. Unmatched bright modes of light result in additional noise which technically limits detection of Gaussian entanglement at macroscopic level. When the mode-matching is sufficient, we show that multimode quantum key distributionwith bright beams is feasible. It finally merges the quantum communication with classical optical technology of visible beams of light.
Czech name
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Czech description
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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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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)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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