%0 Journal Article
%T Multichannel quantum-defect theory for magnetic Feshbach resonances in heteronuclear group I systems
%A Constantinos Makrides
%A Bo Gao
%J Physics
%D 2014
%I arXiv
%R 10.1103/PhysRevA.89.062718
%X We present a multichannel quantum-defect theory for magnetic Feshbach resonances in the interaction of two heteronuclear group I atoms. The theory provides a unified and a uniform description of resonances in all partial waves, and enables the characterization of large number of resonances in terms of very few parameters. For the sample system of $^6$Li$^{40}$K, we present descriptions of all resonances in $aa$, $ab$, and $ba$ channels, in partial waves $s$ ($l=0$) through $h$ ($l=5$), and in a magnetic field of 0 through 1000 Gauss. All resonances, including those in nonzero partial waves, are fully characterized using the newly developed parametrization of Gao [Phy. Rev. A \textbf{84}, 022706 (2011)].
%U http://arxiv.org/abs/1404.6676v1