Metastable Feshbach Molecules in High Rotational States

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dc.creatorKnoop, S.
dc.creatorMark, M.
dc.creatorFerlaino, F.
dc.creatorDanzl, J. G.
dc.creatorKraemer, T.
dc.creatorNaegerl, H. -C.
dc.creatorGrimm, R.
dc.date2007-10-22
dc.date2008-02-29
dc.date.accessioned2026-07-07T09:23:41Z
dc.date.available2026-07-07T09:23:41Z
dc.descriptionWe experimentally demonstrate Cs2 Feshbach molecules well above the dissociation threshold, which are stable against spontaneous decay on the timescale of one second. An optically trapped sample of ultracold dimers is prepared in an l-wave state and magnetically tuned into a region with negative binding energy. The metastable character of these molecules arises from the large centrifugal barrier in combination with negligible coupling to states with low rotational angular momentum. A sharp onset of dissociation with increasing magnetic field is mediated by a crossing with a g-wave dimer state and facilitates dissociation on demand with a well defined energy.
dc.description4 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0710.4052
dc.identifierhttp://arxiv.org/abs/0710.4052
dc.identifierPhys. Rev. Lett. 100, 083002 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.083002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/155821
dc.subjectOther Condensed Matter
dc.titleMetastable Feshbach Molecules in High Rotational States
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