Abstract
We present a multichannel quantum-defect theory for slow atomic collisions that takes advantages of the analytic solutions for the long-range potential and both the energy and angular momentum insensitivities of the short-range parameters. The theory provides an accurate and complete account of scattering processes, including shape and Feshbach resonances, in terms of a few parameters such as the singlet and triplet scattering lengths. As an example, results for scattering are presented and compared to close-coupling calculations.
- Received 8 August 2005
DOI:https://doi.org/10.1103/PhysRevA.72.042719
©2005 American Physical Society