dc.identifier.uri |
http://dx.doi.org/10.15488/1884 |
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dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/1909 |
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dc.contributor.author |
Scherer, Manuel
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dc.contributor.author |
Lücke, Bernd
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dc.contributor.author |
Gebreyesus, Garu
|
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dc.contributor.author |
Topic, Oliver
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dc.contributor.author |
Deuretzbacher, Frank
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dc.contributor.author |
Ertmer, Wolfgang
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dc.contributor.author |
Santos, Luis
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dc.contributor.author |
Arlt, Jan J.
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dc.contributor.author |
Klempt, Carsten
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dc.date.accessioned |
2017-09-14T07:14:19Z |
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dc.date.available |
2017-09-14T07:14:19Z |
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dc.date.issued |
2010 |
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dc.identifier.citation |
Scherer, M.; Lücke, B.; Gebreyesus, G.; Topic, O.; Deuretzbacher, F. et al.: Spontaneous breaking of spatial and spin symmetry in spinor condensates. In: Physical Review Letters 105 (2010), Nr. 13, No. 135302. DOI: https://doi.org/10.1103/PhysRevLett.105.135302 |
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dc.description.abstract |
Parametric amplification of quantum fluctuations constitutes a fundamental mechanism for spontaneous symmetry breaking. In our experiments, a spinor condensate acts as a parametric amplifier of spin modes, resulting in a twofold spontaneous breaking of spatial and spin symmetry in the amplified clouds. Our experiments permit a precise analysis of the amplification in specific spatial Bessel-like modes, allowing for the detailed understanding of the double symmetry breaking. On resonances that create vortex-antivortex superpositions, we show that the cylindrical spatial symmetry is spontaneously broken, but phase squeezing prevents spin-symmetry breaking. If, however, nondegenerate spin modes contribute to the amplification, quantum interferences lead to spin-dependent density profiles and hence spontaneously formed patterns in the longitudinal magnetization. © 2010 The American Physical Society. |
eng |
dc.description.sponsorship |
DFG/EXC/QUEST |
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dc.description.sponsorship |
ESF/EuroQUASAR |
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dc.description.sponsorship |
Danish National Research Foundation Center for Quantum Optics (QUANTOP) |
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dc.language.iso |
eng |
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dc.publisher |
College Park, MD : American Physical Society |
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dc.relation.ispartofseries |
Physical Review Letters 105 (2010), Nr. 13 |
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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 |
Antivortex |
eng |
dc.subject |
Density profile |
eng |
dc.subject |
Longitudinal magnetization |
eng |
dc.subject |
Parametric amplification |
eng |
dc.subject |
Precise analysis |
eng |
dc.subject |
Quantum fluctuation |
eng |
dc.subject |
Quantum interference |
eng |
dc.subject |
Spatial symmetry |
eng |
dc.subject |
Spin modes |
eng |
dc.subject |
Spin symmetry |
eng |
dc.subject |
Spinor condensates |
eng |
dc.subject |
Spontaneous symmetry breaking |
eng |
dc.subject |
Symmetry-breaking |
eng |
dc.subject |
Bioelectric phenomena |
eng |
dc.subject |
Microwave amplifiers |
eng |
dc.subject |
Parametric amplifiers |
eng |
dc.subject |
Quantum electronics |
eng |
dc.subject |
Amplification |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Spontaneous breaking of spatial and spin symmetry in spinor condensates |
eng |
dc.type |
Article |
|
dc.type |
Text |
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dc.relation.issn |
00319007 |
|
dc.relation.doi |
https://doi.org/10.1103/PhysRevLett.105.135302 |
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dc.bibliographicCitation.issue |
13 |
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dc.bibliographicCitation.volume |
105 |
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dc.bibliographicCitation.firstPage |
135302 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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