Zero temperature correlations in trapped Bose-Einstein condensates

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dc.creatorStrunz, Walter T.
dc.date2000-03-14
dc.date.accessioned2026-07-07T02:37:05Z
dc.date.available2026-07-07T02:37:05Z
dc.descriptionWe introduce a family of correlated trial wave functions for the $N$-particle ground state of an interacting Bose gas in a harmonic trap. For large $N$, the correlations lead to a relative energy decrease of a fraction $3/5N$, compared to mean field Gross-Pitaevskii theory. The kinetic energy in the weakly confining direction turns out to be most sensitive to our correlations and, remarkably, is higher by as much as a few per cent for condensates with atom numbers of a few thousand. Thus, the predicted deviations from Gross-Pitaevskii theory originating from ground state correlations might be observed in momentum distribution measurements of small condensates.
dc.description10 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0003242
dc.identifierhttp://arxiv.org/abs/cond-mat/0003242
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/16156
dc.subjectCondensed Matter
dc.titleZero temperature correlations in trapped Bose-Einstein condensates
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