VVhyphen;VT intermode coupling in vibrational energy transfer

摘要

The coupling of VV and VT energy transfer modes in molecular collisions is studied with an exponentialhyphen;operator solution of the Schrouml;dinger equation of motion. The effects of VT mode on a nominally VV process and VV mode on a nominally VT process have been calculated for the specified initial state of Verbar;60rang;. The evolution of all VV channels from Verbar;60rang; and the transformation of these channels to the final VVhyphen;VT state are discussed in detail. At collision energies of several times vibrational quantum, the VVhyphen;VT intermode coupling is so strong that energy transfer processes cannot be represented by the VV or VT mechanism alone.