Threshold peaks in the vibrational excitation of molecules by electron impact: a time-dependent view

摘要: Resonance and threshold effects in low-energy electronmolecule collisions are analyzed a time-dependent picture. Time-dependent wave packets reflecting the non-Markovian open-system dynamics of electron-molecule collision complexes explicitly generated for two representative models pures-wave scattering dipole-modifieds-wave scattering, respectively. The numerical results demonstrate relevance adiabatic potential-energy curves resonances, virtual states bound qualitative understanding lucidly reveal existence nonadiabatic processes such systems.