Time-Dependent Wave Packet Dynamics Calculations of Cross Sections for Ultracold Scattering of Molecules
Jiayu Huang, Shu Liu, Dong Hui Zhang +1 more
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.
arXiv:1710.09057•Physical Review Letters•Apr 4, 2018•44 citations