Mixed classical-quantum approach to excitation, ionization, and fragmentation of H 2 + in intense laser fields

摘要: A mixed-classical-quantum approach to describe laser-induced excitation, fragmentation and, in particular, ionization of one-electron molecular dimers is presented. Self-consistent equations motion for the classical nuclear dynamics and quantum-mechanical electronic evolution are derived. They solved using a combined set basis functions wave function consisting atomic orbitals chainlike arranged Gaussians account realistic description continuum ionized electron. For benchmark system H{sub 2}{sup +}, obtained results good agreement with those full-quantum-mechanical calculations, which available relatively short laser pulses. longer pulses, present calculation signals transient effect stabilization against at corresponding (low) intensities.