Rapid Adiabatic Passage from an Atomic to a Molecular Condensate
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.
Keywords
Cite
@article{arxiv.physics/0210131,
title = {Rapid Adiabatic Passage from an Atomic to a Molecular Condensate},
author = {Matt Mackie and Andrew Carmichael and Marijan Kostrun and Rory J. Perkins and Chen Xu and Yi Zhen and Kalle-Antti Suominen and Juha Javanainen},
journal= {arXiv preprint arXiv:physics/0210131},
year = {2016}
}
Comments
4 pages, 3 figures; submitted to PRL; v2 has fewer references to save space (sorry to those deleted!!), and improved discussion of the model