Symmetry-conserving vortex clusters in small rotating clouds of ultracold bosons

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The properties of a special class of correlated many-body wave functions, named rotating vortex clusters (RVCs), that preserve the total angular momentum of a small cloud of trapped rotating bosons are investigated. They have lower energy and provide a superior description for the formation of vortices compared to the mean-field Gross-Pitaevskii (GP) states that break the rotational symmetry. The GP vortex states are shown to be wave packets composed of such RVC states. Our results suggest that, for a small number of bosons, the physics is different from that of ideal Bose-Einstein condensates which characterize larger assemblies
Revtex 4 with 4 color figures. Published version. Ref. [25] (experimental) was added. For related papers, see http://www.prism.gatech.edu/~ph274cy/

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Mesoscale and Nanoscale Physics, Other Condensed Matter, Nuclear Theory, Atomic and Molecular Clusters

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http://salesiana.dossiersoluciones.com/handle/123456789/165717

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0807.0251
 http://arxiv.org/abs/0807.0251
 Phys. Rev. A 78, 011606(R) (2008)
 doi:10.1103/PhysRevA.78.011606

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arXiv