Abstract
We apply quantum-defect theory to study low-energy ground-state atomic collisions, including aligned dipole interactions such as those induced by an electric field. Our results show that coupled even- relative orbital angular momentum partial-wave channels exhibit shape resonance structures while odd- channels do not. We analyze and interpret these resonances within the framework of multichannel quantum defect theory.
- Received 20 March 2001
DOI:https://doi.org/10.1103/PhysRevA.64.022717
©2001 American Physical Society