dc.identifier.uri |
http://dx.doi.org/10.15488/3583 |
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dc.identifier.uri |
https://www.repo.uni-hannover.de:443/handle/123456789/3615 |
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dc.contributor.author |
Kleine Buening, G.
|
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dc.contributor.author |
Will, J.
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dc.contributor.author |
Ertmer, Wolfgang
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dc.contributor.author |
Rasel, Ernst Maria
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dc.contributor.author |
Arlt, Jan J.
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dc.contributor.author |
Klempt, Carsten
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dc.contributor.author |
Ramirez-Martinez, F.
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dc.contributor.author |
Piechon, F.
|
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dc.contributor.author |
Rosenbusch, P.
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dc.date.accessioned |
2018-08-22T12:35:00Z |
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dc.date.available |
2018-08-22T12:35:00Z |
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dc.date.issued |
2011 |
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dc.identifier.citation |
Buening, G. Kleine; Will, J.; Ertmer, W.; Rasel, E.; Arlt, J.; Klempt, C.; et al.: Extended Coherence Time on the Clock Transition of Optically Trapped Rubidium. In: Physical Review Letters 106 (2011), Nr. 24, 240801. DOI: https://doi.org/10.1103/PhysRevLett.106.240801 |
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dc.description.abstract |
Optically trapped ensembles are of crucial importance for frequency measurements and quantum memories but generally suffer from strong dephasing due to inhomogeneous density and light shifts. We demonstrate a drastic increase of the coherence time to 21 s on the magnetic field insensitive clock transition of Rb-87 by applying the recently discovered spin self-rephasing [C. Deutsch et al., Phys. Rev. Lett. 105, 020401 (2010)]. This result confirms the general nature of this new mechanism and thus shows its applicability in atom clocks and quantum memories. A systematic investigation of all relevant frequency shifts and noise contributions yields a stability of 2: 4 X 10(-11) tau(-1/2), where tau is the integration time in seconds. Based on a set of technical improvements, the presented frequency standard is predicted to rival the stability of microwave fountain clocks in a potentially much more compact setup. |
eng |
dc.language.iso |
eng |
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dc.publisher |
College Park : American Physical Society |
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dc.relation.ispartofseries |
Physical Review Letters 106 (2011), Nr. 24 |
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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 |
A-stability |
eng |
dc.subject |
Clock transition |
eng |
dc.subject |
Coherence time |
eng |
dc.subject |
Dephasing |
eng |
dc.subject |
Frequency measurements |
eng |
dc.subject |
Frequency shift |
eng |
dc.subject |
General nature |
eng |
dc.subject |
Inhomogeneous density |
eng |
dc.subject |
Integration time |
eng |
dc.subject |
Light shift |
eng |
dc.subject |
New mechanisms |
eng |
dc.subject |
Noise contributions |
eng |
dc.subject |
Quantum memories |
eng |
dc.subject |
Systematic investigations |
eng |
dc.subject |
Technical improvement |
eng |
dc.subject |
entanglement |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Extended Coherence Time on the Clock Transition of Optically Trapped Rubidium |
|
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.essn |
1079-7114 |
|
dc.relation.issn |
0031-9007 |
|
dc.relation.doi |
https://doi.org/10.1103/PhysRevLett.106.240801 |
|
dc.bibliographicCitation.issue |
24 |
|
dc.bibliographicCitation.volume |
106 |
|
dc.bibliographicCitation.firstPage |
240801 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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