Electron Flux Distributions in the Photodetachment of H2- in an Electric Field

The electron flux distributions in the photdetachment of a negative hydrogen molecular ion in an electric field have been studied by using the two-center model and the closed orbit theory. An analytic formula is presented for the electron flux of H₂^- in the presence of an electric field. The results show that the interference between the two orbits passing through the given spatial point leads to the oscillation in the electron flux distribution. Besides, the interference between the two centers of the H₂^- is also very important. The comparison betweenthe electron flux of H₂^- in electric field with the result of H^- shows that at the equilibrium distance of two centers in the H₂^-, the interference of the two nuclei on the detached electron's flux distribution is very strong, while at larger distance of the two centers, the interference effect of the two centers is decreased.