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26 April 2024 |
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Rapid Adiabatic Passage from an Atomic to a Molecular Condensate | | Matt Mackie
; Andrew Carmichael
; Marijan Kostrun
; Rory J. Perkins
; Chen Xu
; Yi Zhen
; Kalle-Antti Suominen
; Juha Javanainen
; | | Date: |
31 Oct 2002 | | Subject: | Atomic Physics; Chemical Physics; Soft Condensed Matter; Statistical Mechanics | physics.atom-ph cond-mat.soft cond-mat.stat-mech physics.chem-ph quant-ph | | Abstract: | We examine collective magnetoassociation of a Bose-Einstein condensate (BEC), focusing on rapid adiabatic passage from atoms to molecules induced by a sweep of the magnetic field across a wide (>~ 10 G) Feshbach resonance in 85Rb. This problem raises an interest because strong magnetoassociation is expected to favor the creation of molecular-dissociated atom pairs over the formation of molecular BEC [Javanainen and Mackie, Phys. Rev. Lett. 88, 090403 (2002)]. Nevertheless, the conversion to atom pairs is found to depend on the direction of the sweep, so that a system initially above threshold (open dissociation channel) may in fact give near-complete conversion to molecules. | | Source: | arXiv, physics/0210131 | | Services: | Forum | Review | PDF | Favorites | |
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