Skip to main content
Article thumbnail
Location of Repository

Mean-Field Theory of Feshbach-Resonant Interactions in 85 Rb

By Bose-einstein Condensates, Matt Mackie, Kalle-antti Suominen and Juha Javanainen


Recent Feshbach-resonance experiments with 85Rb Bose-Einstein condensates have led to a host of unexplained results: dramatic losses of condensate atoms for an across-resonance sweep of the magnetic field, a collapsing condensate with a burst of atoms emanating from the remnant condensate, increased losses for decreasing interaction times, and seemingly coherently oscillations between remnant and burst atoms. Using a simple yet realistic mean-field model, we find that rogue dissociation – molecular dissociation to noncondensate atom pairs – is strongly implicated as the physical mechanism responsible for these observations. Typeset using REVTEX 1 Introduction – The process known as the Feshbach resonance [1] occurs at a proper value of the magnetic field when two ultracold atoms collide in such a way that the spin of one of the atoms flips and the atom pair jumps from the two-atom continuum to a quasibound molecular state. If the initial atoms are Bose-condensed [2], the so-formed molecules wil

Year: 2002
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • (external link)
  • (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.