Influence of the particle number on the spin dynamics of ultracold atoms

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dc.identifier.uri Heinze, Jannes Deuretzbacher, Frank Pfannkuche, Daniela 2017-09-14T08:57:52Z 2017-09-14T08:57:52Z 2010
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:
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
dc.publisher College Park, MD : American Physical Society
dc.relation.ispartofseries Physical Review A 82 (2010), Nr. 2
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
dc.type Text
dc.relation.issn 10502947
dc.bibliographicCitation.issue 2
dc.bibliographicCitation.volume 82
dc.bibliographicCitation.firstPage 23617
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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