Ultracold atom-molecule and molecule-molecule collisions

POSTER

Abstract

Recent success in cooling and trapping of molecules has attracted much attention on cold and ultracold molecular collisions as well as controlled chemistry. Here we report on our progress on atom-molecule and molecule-molecule collisions in the ultracold regime. The F+HCl/DCl systems are investigated to study the effect of long-range interaction, tunneling, and rotational excitation of the molecule on chemical reactivity. The H$_2$-H$_2$ system is used as a prototype for the study of rotational and vibrational transitions in molecule-molecule collisions at ultracold temperatures. We will present results of reactive and nonreactive scattering on these systems including the relaxation of vibrationally excited H$_2$ molecules.

*This work is supported by NSF grant No. PHY-0555565

Authors

  • Goulven Qu\'em\'ener

    • Department of Chemistry, University of Nevada Las Vegas, Las Vegas, NV 89154
    • Department Of Chemistry, University of Nevada Las Vegas, Las Vegas, NV 89154

  • T.J. Dhilip Kumar

    • Department of Chemistry, University of Nevada Las Vegas, Las Vegas, NV 89154
    • Department of Chemistry, University of Nevada Las Vegas, NV 89154

  • Balakrishnan Naduvalath

    • Department of Chemistry, University of Nevada Las Vegas, Las Vegas, NV 89154
    • Department of Chemistry, University of Nevada Las Vegas, NV 89154

  • Teck-Ghee Lee

    • Oak Ridge National Lab and U of Kentucky
    • Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831

  • Roman Krems

    • Department of Chemistry, University of British Columbia, Vancouver, B.C. V6T 1Z1, Canada
    • University of British Columbia
    • Department of Chemistry, University of British Columbia, Vancouver, Canada