Displacement-enhanced continuous-variable entanglement concentration

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F12%3A33141104" target="_blank" >RIV/61989592:15310/12:33141104 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevA.86.052339" target="_blank" >http://dx.doi.org/10.1103/PhysRevA.86.052339</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.86.052339" target="_blank" >10.1103/PhysRevA.86.052339</a>

Result language
angličtina
Original language name
Displacement-enhanced continuous-variable entanglement concentration
Original language description
We study entanglement concentration of continuous-variable Gaussian states by local photon subtractions enhanced by coherent displacements. Instead of the previously considered symmetric two-mode squeezed vacuum states, we investigate the protocol for input states in the form of split single-mode squeezed vacuum (i.e., states obtained by mixing a single-mode squeezed vacuum with a vacuum state on a beam splitter), which is an experimentally highly relevant configuration. We analyze two scenarios in which the displacement-enhanced photon subtraction is performed either only on one or on both of the modes and show that local displacements can lead to improved performance of the concentration protocol
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
<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)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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