Abstract
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 a large number of resonances in terms of very few parameters. For the sample system of , we present descriptions of all resonances in , , and channels, in partial waves () through (), and in a magnetic field of 0–1000 G. All resonances, including those in nonzero partial waves, are fully characterized using the newly developed parametrization of Gao [Phys. Rev. A 84, 022706 (2011)].
- Received 16 April 2014
DOI:https://doi.org/10.1103/PhysRevA.89.062718
©2014 American Physical Society