dc.identifier.uri |
http://dx.doi.org/10.15488/8789 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/8842 |
|
dc.contributor.author |
Eberle, Tobias
|
|
dc.contributor.author |
Händchen, Vitus
|
|
dc.contributor.author |
Duhme, Jörg
|
|
dc.contributor.author |
Franz,Torsten
|
|
dc.contributor.author |
Werner, Reinhard F.
|
|
dc.contributor.author |
Schnabel, Roman
|
|
dc.date.accessioned |
2019-12-11T12:50:55Z |
|
dc.date.available |
2019-12-11T12:50:55Z |
|
dc.date.issued |
2011 |
|
dc.identifier.citation |
Eberle, T. et al.: Strong Einstein-Podolsky-Rosen entanglement from a single squeezed light source. In: Physical Review A 83 (2011), Nr. 5, 052329. DOI: https://doi.org/10.1103/PhysRevA.83.052329 |
|
dc.description.abstract |
Einstein-Podolsky-Rosen (EPR) entanglement is a criterion that is more demanding than just certifying entanglement. We theoretically and experimentally analyze the low-resource generation of bipartite continuous-variable entanglement, as realized by mixing a squeezed mode with a vacuum mode at a balanced beam splitter, i.e., the generation of so-called vacuum-class entanglement. We find that in order to observe EPR entanglement the total optical loss must be smaller than 33.3 %. However, arbitrarily strong EPR entanglement is generally possible with this scheme. We realize continuous-wave squeezed light at 1550 nm with up to 9.9 dB of nonclassical noise reduction, which is the highest value at a telecom wavelength so far. Using two phase-controlled balanced homodyne detectors we observe an EPR covariance product of 0.502±0.006<1, where 1 is the critical value. We discuss the feasibility of strong Gaussian entanglement and its application for quantum key distribution in a short-distance fiber network. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
College Park, MD : American Physical Society |
|
dc.relation.ispartofseries |
Physical Review A 83 (2011), Nr. 5 |
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dc.rights |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. |
|
dc.subject |
Gaussian state |
eng |
dc.subject |
poled potassium titanyl phosphate |
eng |
dc.subject |
piezoelectric transducer |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Strong Einstein-Podolsky-Rosen entanglement from a single squeezed light source |
eng |
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.essn |
1094-1622 |
|
dc.relation.essn |
2469-9926 |
|
dc.relation.essn |
2469-9934 |
|
dc.relation.issn |
0556-2791 |
|
dc.relation.issn |
1050-2947 |
|
dc.relation.doi |
https://doi.org/10.1103/PhysRevA.83.052329 |
|
dc.bibliographicCitation.issue |
5 |
|
dc.bibliographicCitation.volume |
83 |
|
dc.bibliographicCitation.firstPage |
52329 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|