Few-body ultracold reactions in a Bose-Fermi mixture
Atomic Physics
2013-07-31 v1 Quantum Gases
Abstract
The spectrum of two bosons and two fermions in a trap is calculated using a correlated-Gaussian basis throughout the range of a broad Fano-Feshbach resonance. The calculations provide a few-body solution to the magneto-association of fermionic Feshbach molecules. This solution is used to study the time evolution of the system as the scattering length changes, mimicking experiments with Bose-Fermi mixtures near Fano-Feshbach resonances. The structure of avoided crossings in the few-body spectrum enables an interpretation of the dynamics of the system as a sequence of Landau-Zener transitions. The calculated molecule formation rate is compared with experimental observations.
Keywords
Cite
@article{arxiv.1201.5416,
title = {Few-body ultracold reactions in a Bose-Fermi mixture},
author = {Chen Zhang and Javier von Stecher and Chris H. Greene},
journal= {arXiv preprint arXiv:1201.5416},
year = {2013}
}