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Efficient method for quantum calculations of molecule - molecule scattering properties in a magnetic field

Atomic Physics 2012-09-17 v1 Chemical Physics

Abstract

We show that the cross sections for molecule - molecule collisions in the presence of an external field can be computed efficiently using a total angular momentum basis, defined either in the body-fixed frame or in the space-fixed coordinate system. This method allows for computations with much larger basis sets than previously possible. We present calculations for 15NH - 15NH collisions in a magnetic field. Our results support the conclusion of the previous study that the evaporative cooling of rotationally ground 15NH molecules in a magnetic trap has a prospect of success.

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Cite

@article{arxiv.1202.0597,
  title  = {Efficient method for quantum calculations of molecule - molecule scattering properties in a magnetic field},
  author = {Y. V. Suleimanov and T. V. Tscherbul and R. V. Krems},
  journal= {arXiv preprint arXiv:1202.0597},
  year   = {2012}
}