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Multichannel Quantum-Defect Theory for Slow Atomic Collisions

Published

Author(s)

B Gao, Eite Tiesinga, Carl J. Williams, Paul S. Julienne

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 the 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 the triplet scattering lengths. As an example, results for ^23}Na-^23}Na scattering are presented and compared close-coupling calculations.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
72

Keywords

cold atomic collisions, Feshbach resonance, multichannel quantum defect theory, scattering length

Citation

Gao, B. , Tiesinga, E. , Williams, C. and Julienne, P. (2005), Multichannel Quantum-Defect Theory for Slow Atomic Collisions, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed April 13, 2024)
Created October 27, 2005, Updated October 12, 2021