Photoassociation of a Bose-Einstein Condensate near a Feshbach Resonance

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dc.creatorJunker, M.
dc.creatorDries, D.
dc.creatorWelford, C.
dc.creatorHitchcock, J.
dc.creatorChen, Y. P.
dc.creatorHulet, R. G.
dc.date2008-03-07
dc.date2008-07-09
dc.date.accessioned2026-07-07T09:58:35Z
dc.date.available2026-07-07T09:58:35Z
dc.descriptionWe measure the effect of a magnetic Feshbach resonance (FR) on the rate and light-induced frequency shift of a photoassociation resonance in ultracold $^7$Li. The photoassociation-induced loss rate coefficient, $K_p$, depends strongly on magnetic field, varying by more than a factor of 10$^4$ for fields near the FR. At sufficiently high laser intensities, $K_p$ for a thermal gas decreases with increasing intensity, while saturation is observed for the first time in a Bose-Einstein condensate. The frequency shift is also strongly field-dependent and exhibits an anomalous blue-shift for fields just below the FR.
dc.description4 pages, 4 figures. v2: updated comparison with theory; added references; added tick marks to Fig. 1 inset. To be published in Phys. Rev. Letters
dc.identifierhttps://arxiv.org/abs/0803.1167
dc.identifierhttp://arxiv.org/abs/0803.1167
dc.identifierPhys. Rev. Lett. 101, 060406 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.060406
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/167768
dc.subjectOther Condensed Matter
dc.titlePhotoassociation of a Bose-Einstein Condensate near a Feshbach Resonance
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