Stabilizing a purely dipolar quantum gas against collapse

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dc.creatorKoch, T.
dc.creatorLahaye, T.
dc.creatorMetz, J.
dc.creatorFröhlich, B.
dc.creatorGriesmaier, A.
dc.creatorPfau, T.
dc.date2007-10-19
dc.date.accessioned2026-07-07T09:25:05Z
dc.date.available2026-07-07T09:25:05Z
dc.descriptionWe report on the experimental observation of the dipolar collapse of a quantum gas which sets in when we reduce the contact interaction below some critical value using a Feshbach resonance. Due to the anisotropy of the dipole-dipole interaction, the stability of a dipolar Bose-Einstein condensate depends not only on the strength of the contact interaction, but also on the trapping geometry. We investigate the stability diagram and find good agreement with a universal stability threshold arising from a simple theoretical model. Using a pancake-shaped trap with the dipoles oriented along the short axis of the trap, we are able to tune the scattering length to zero, stabilizing a purely dipolar quantum gas.
dc.description5 pages, 1 table, 3 figures
dc.identifierhttps://arxiv.org/abs/0710.3643
dc.identifierhttp://arxiv.org/abs/0710.3643
dc.identifierNature Physics 4, 218 (2008)
dc.identifierdoi:10.1038/nphys887
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/156290
dc.subjectOther Condensed Matter
dc.titleStabilizing a purely dipolar quantum gas against collapse
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