English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We study the creation of vortex states in a trapped Bose-Einstein condensateby a rotating force. For a harmonic trapping potential the rotating forceinduces only a circular motion of the whole condensate around the trap centerwhich does not depend on the interatomic interaction. For the creation of apure vortex state it is necessary to confine the atoms in an anharmonictrapping potential. The efficiency of the creation can be greatly enhanced by asinusodial variation of the force's angular velocity. We present analytical andnumerical calculations for the case of a quartic trapping potential. Thephysical mechanism behind the requirement of an anharmonic trapping potentialfor the creation of pure vortex states is explained.  [Changes: new numerical and analytical results are added and therepresentation is improved.]Comment: 13 Pages, 5 Figures, RevTe

Quantized circular motion of a trapped Bose-Einstein condensate: Coherent rotation and vortices