Multichannel quantum-defect theory for slow atomic collisions

Bo Gao, Eite Tiesinga, Carl J. Williams, and Paul S. Julienne
Phys. Rev. A 72, 042719 – Published 28 October 2005

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 Na23Na23 scattering are presented and compared to close-coupling calculations.

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  • Received 8 August 2005

DOI:https://doi.org/10.1103/PhysRevA.72.042719

©2005 American Physical Society

Authors & Affiliations

Bo Gao1,*, Eite Tiesinga2, Carl J. Williams2, and Paul S. Julienne2

  • 1Department of Physics and Astronomy, University of Toledo, Toledo, Ohio 43606, USA
  • 2Atomic Physics Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA

  • *Electronic address: bgao@physics.utoledo.edu; http://bgaowww.physics.utoledo.edu

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Vol. 72, Iss. 4 — October 2005

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