dc.identifier.uri |
http://dx.doi.org/10.15488/3597 |
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dc.identifier.uri |
https://www.repo.uni-hannover.de:443/handle/123456789/3629 |
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dc.contributor.author |
Wacker, L.
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dc.contributor.author |
Jørgensen, N.B.
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dc.contributor.author |
Birkmose, D.
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dc.contributor.author |
Horchani, R.
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dc.contributor.author |
Ertmer, Wolfgang
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dc.contributor.author |
Klempt, Carsten
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dc.contributor.author |
Winter, N.
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dc.contributor.author |
Sherson, J.
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dc.contributor.author |
Arlt, Jan J.
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dc.date.accessioned |
2018-08-22T12:35:02Z |
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dc.date.available |
2018-08-22T12:35:02Z |
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dc.date.issued |
2015 |
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dc.identifier.citation |
Wacker, L.; Jørgensen, N.B.; Birkmose, D.; Horchani, R.; Ertmer, W.; et al.: Tunable dual-species Bose-Einstein condensates of 39K and 87Rb. In: Physical Review A - Atomic, Molecular, and Optical Physics 92 (2015), Nr. 5, 53602. DOI: https://doi.org/10.1103/PhysRevA.92.053602 |
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dc.description.abstract |
We present the production of dual-species Bose-Einstein condensates (BECs) of 39K and 87Rb. Preparation of both species in the |F=1,mF=−1⟩ state enabled us to exploit a total of three Feshbach resonances, which allows for simultaneous Feshbach tuning of the 39K intraspecies and the 39K−87Rb interspecies scattering length. Thus dual-species Bose-Einstein condensates were produced by sympathetic cooling of 39K with 87Rb. A dark spontaneous force optical trap was used for 87Rb to reduce the losses in 39K due to light-assisted collisions in the optical trapping phase, which can be of benefit for other dual-species experiments. The tunability of the scattering length was used to perform precision spectroscopy of the interspecies Feshbach resonance located at 117.56(2) G and to determine the width of the resonance to 1.21(5) G by rethermalization measurements. The transition region from miscible to immiscible dual-species condensates was investigated and the interspecies background scattering length was determined to 28.5a0 using an empirical model. This paves the way for dual-species experiments with 39K and 87Rb BECs ranging from molecular physics to precision metrology. |
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 A 92 (2015), 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. |
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dc.subject |
Resonance |
eng |
dc.subject |
Rubidium |
eng |
dc.subject |
Statistical mechanics |
eng |
dc.subject |
Bose-Einstein condensates |
eng |
dc.subject |
Feshbach resonances |
eng |
dc.subject |
Opticaltrapping |
eng |
dc.subject |
Precision metrology |
eng |
dc.subject |
Precision spectroscopy |
eng |
dc.subject |
Scattering length |
eng |
dc.subject |
Sympathetic cooling |
eng |
dc.subject |
Transition regions |
eng |
dc.subject |
Bose-Einstein condensation |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Tunable dual-species Bose-Einstein condensates of 39K and 87Rb |
eng |
dc.type |
Article |
|
dc.type |
Text |
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dc.relation.issn |
1050-2947 |
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dc.relation.doi |
https://doi.org/10.1103/PhysRevA.92.053602 |
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dc.bibliographicCitation.issue |
5 |
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dc.bibliographicCitation.volume |
92 |
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dc.bibliographicCitation.firstPage |
053602 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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