Squeezed-state purification with linear optics and feedforward
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F06%3A00002607" target="_blank" >RIV/61989592:15310/06:00002607 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Squeezed-state purification with linear optics and feedforward
Original language description
A scheme for optimal and deterministic linear optical purification of mixed squeezed Gaussian states is proposed and experimentally demonstrated. The scheme requires only linear optical elements and homodyne detectors, and allows the balance between purification efficacy and squeezing degradation to be controlled. One particular choice of parameters gave a tenfold reduction of the thermal noise with a corresponding squeezing degradation of only 11%. We prove optimality of the protocol, and show that itcan be used to enhance the performance of quantum informational protocols such as dense coding and entanglement generation.
Czech name
Purifikace stlačených stavů pomocí lineární optiky a dopředné korekce
Czech description
Navrhujeme a experimentálně demonstrujeme schéma pro optimální a deterministickou lineárně optickou purifikaci smíšených Gaussovských stavů. Schéma vyžaduje pouze lineárně optické elementy a homodynní detekci, a dovoluji dosáhnou kontrolované balance mezi účinností purikace a snížení stlačení.
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/GP202%2F03%2FD239" target="_blank" >GP202/03/D239: Reduction of decoherence in quantum transmission and processing of information</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2006
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 Letters
ISSN
0031-9007
e-ISSN
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Volume of the periodical
97
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
1
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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