Classical dynamics of H2+ in an intense laser field by using the symplectic method

The classical dynamics of 1D H-2(+) in an intense field are discussed. The initial conditions are chosen at random in the field-free case, and then the Hamiltonian canonical equations of H-2(+) system in the intense laser field are solved numerically by mean of the symplectic method under these initial conditions. The probabilities of survival, dissociation, ionization, and Coulomb explosion of H-2(+) system in the intense laser field are obtained for different laser intensity based on the classical theory.