Experimental entanglement distillation of mesoscopic quantum states

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F08%3A00005351" target="_blank" >RIV/61989592:15310/08:00005351 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Experimental entanglement distillation of mesoscopic quantum states

Original language description

The distribution of entangled states between distant parties in an optical network is crucial for the successful implementation of various quantum communication protocols such as quantum cryptography, teleportation and dense coding. However, owing to theunavoidable loss in any real optical channel, the distribution of loss-intolerant entangled states is inevitably afflicted by decoherence, which causes a degradation of the transmitted entanglement. To combat the decoherence, entanglement distillation,a process of extracting a small set of highly entangled states from a large set of less entangled states, can be used. Here we report on the distillation of deterministically prepared light pulses entangled in continuous variables that have undergone non-Gaussian noise. The entangled light pulses15, 16, 17 are sent through a lossy channel, where the transmission is varying in time similarly to light propagation in the atmosphere. By using linear optical components and global classical co

Czech name

Experimentální destilace kvantové provázanosti mezoskopických kvantových stavů

Czech description

Ukazujeme destilaci deterministicky připravených světelných pulsů provázaných ve spojitých proměnných které jsou ovlivněny ne-Gausovským šumem. Využitím linein optických komponent, homodynní detekce a klasické komunikace, provázanost může být pravděpodobnostně zvýšena.

Type

J_x - 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)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

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

Name of the periodical

Nature Physics

ISSN

1745-2473

e-ISSN

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Volume of the periodical

4

Issue of the periodical within the volume

12

Country of publishing house

GB - UNITED KINGDOM

Number of pages

5

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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