Comparison of numerical methods for the calculation of cold atom collisions

@article{Rawitscher1999ComparisonON,
  title={Comparison of numerical methods for the calculation of cold atom collisions},
  author={George Rawitscher and Brett Daniel Esry and Eite Tiesinga and James P. Burke},
  journal={Journal of Chemical Physics},
  year={1999},
  volume={111},
  pages={10418-10426}
}
Comparison between three different numerical techniques for solving a coupled channel Schrodinger equation is presented. The benchmark equation, which describes the collision between two ultracold atoms, consists of two channels, each containing the same diagonal Lennard-Jones potential, one of positive and the other of negative energy. The coupling potential is of an exponential form. The methods are (i) a recently developed spectral type integral equation method based on Chebyshev expansions… 
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