Association of ultracold double-species bosonic molecules

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dc.creatorWeber, C.
dc.creatorBarontini, G.
dc.creatorCatani, J.
dc.creatorThalhammer, G.
dc.creatorInguscio, M.
dc.creatorMinardi, F.
dc.date2008-08-29
dc.date.accessioned2026-07-07T12:34:43Z
dc.date.available2026-07-07T12:34:43Z
dc.descriptionWe report on the creation of heterospecies bosonic molecules, associated from an ultracold Bose-Bose mixture of 41K and 87Rb, by using a resonantly modulated magnetic field close to two Feshbach resonances. We measure the binding energy of the weakly bound molecular states versus the Feshbach field and compare our results to theoretical predictions. We observe the broadening and asymmetry of the association spectrum due to thermal distribution of the atoms, and a frequency shift occurring when the binding energy depends nonlinearly on the Feshbach field. A simple model is developed to quantitatively describe the association process. Our work marks an important step forward in the experimental route towards Bose-Einstein condensates of dipolar molecules.
dc.description5 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0808.4077
dc.identifierhttp://arxiv.org/abs/0808.4077
dc.identifierPhys. Rev. A 78 (2008) 061601(R)
dc.identifierdoi:10.1103/PhysRevA.78.061601
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217536
dc.subjectOther Condensed Matter
dc.titleAssociation of ultracold double-species bosonic molecules
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