dc.identifier.uri |
http://dx.doi.org/10.15488/1894 |
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dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/1919 |
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dc.contributor.author |
Heinze, Jannes
|
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dc.contributor.author |
Deuretzbacher, Frank
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dc.contributor.author |
Pfannkuche, Daniela
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dc.date.accessioned |
2017-09-14T08:57:52Z |
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dc.date.available |
2017-09-14T08:57:52Z |
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dc.date.issued |
2010 |
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dc.identifier.citation |
Heinze, J.; Deuretzbacher, F.; Pfannkuche, D.: Influence of the particle number on the spin dynamics of ultracold atoms. In: Physical Review A - Atomic, Molecular, and Optical Physics 82 (2010), Nr. 2, No. 23617. DOI: https://doi.org/10.1103/PhysRevA.82.023617 |
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dc.description.abstract |
We study the dependency of the quantum spin dynamics on the particle number in a system of ultracold spin-1 atoms within the single-spatial-mode approximation. We find, for all strengths of the spin-dependent interaction, convergence toward the mean-field dynamics in the thermodynamic limit. The convergence is, however, particularly slow when the spin-changing collisional energy and the quadratic Zeeman energy are equal; that is, deviations between quantum and mean-field spin dynamics may be extremely large under these conditions. Our estimates show that quantum corrections to the mean-field dynamics may play a relevant role in experiments with spinor Bose-Einstein condensates. This is especially the case in the regime of few atoms, which may be accessible in optical lattices. Here, spin dynamics is modulated by a beat note at large magnetic fields due to the significant influence of correlated many-body spin states. © 2010 The American Physical Society. |
eng |
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 A 82 (2010), Nr. 2 |
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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 |
Bose-Einstein condensates |
eng |
dc.subject |
Collisional energies |
eng |
dc.subject |
Many-body |
eng |
dc.subject |
Mean field dynamics |
eng |
dc.subject |
Mean-field |
eng |
dc.subject |
Mode approximations |
eng |
dc.subject |
Optical lattices |
eng |
dc.subject |
Particle numbers |
eng |
dc.subject |
Quantum correction |
eng |
dc.subject |
Quantum spin dynamics |
eng |
dc.subject |
Spin state |
eng |
dc.subject |
Spin-dependent interactions |
eng |
dc.subject |
Thermodynamic limits |
eng |
dc.subject |
Ultra-cold |
eng |
dc.subject |
Ultracold atoms |
eng |
dc.subject |
Zeeman energies |
eng |
dc.subject |
Atoms |
eng |
dc.subject |
Dynamics |
eng |
dc.subject |
Electromagnetic field effects |
eng |
dc.subject |
Magnetic fields |
eng |
dc.subject |
Statistical mechanics |
eng |
dc.subject |
Steam condensers |
eng |
dc.subject |
Spin dynamics |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Influence of the particle number on the spin dynamics of ultracold atoms |
|
dc.type |
Article |
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dc.type |
Text |
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dc.relation.issn |
10502947 |
|
dc.relation.doi |
https://doi.org/10.1103/PhysRevA.82.023617 |
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dc.bibliographicCitation.issue |
2 |
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dc.bibliographicCitation.volume |
82 |
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dc.bibliographicCitation.firstPage |
23617 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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