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Time-dependent wave packet dynamics calculations of cross sections for ultracold scattering of molecules

Chemical Physics 2018-04-11 v1

Abstract

Because the de Broglie wavelength of ultracold molecules is very large, the cross sections for collisions of molecules at ultracold temperatures are always computed by the time-independent quantum scattering approach. Here, we report the first accurate time-dependent wave packet dynamics calculation for reactive scattering of ultracold molecules. Wave packet dynamics calculations can be applied to molecular systems with more dimensions and provide real-time information on the process of bond-rearrangement and/or energy exchange in molecular collisions. Our work thus makes possible the extension of rigorous quantum calculations of ultracold reaction properties to polyatomic molecules and adds a new powerful tool for the study of ultracold chemistry.

Keywords

Cite

@article{arxiv.1710.09057,
  title  = {Time-dependent wave packet dynamics calculations of cross sections for ultracold scattering of molecules},
  author = {Jiayu Huang and DongHui Zhang and Roman V. Krems},
  journal= {arXiv preprint arXiv:1710.09057},
  year   = {2018}
}