title: Coordinate space translation technique for simulation of electronic process in the ion-atom collision.
abstract: Recently we developed a theoretical model of ion-atom collisions, which was made on the basis of a time-dependent density functional theory description of the electron dynamics and a classical treatment of the heavy particle motion. Taking advantage of the real-space grid method, we introduce a "coordinate space translation" technique to allow one to focus on a certain space of interest such as the region around the projectile or the target. Benchmark calculations are given for collisions between proton and oxygen over a wide range of impact energy. To extract the probability of charge transfer, the formulation of Lüdde and Dreizler [J. Phys. B 16, 3973 (1983)] has been generalized to ensemble-averaging application in the particular case of O((3)P). Charge transfer total cross sections are calculated, showing fairly good agreements between experimental data and present theoretical results.
authors.affiliation: Department of Applied Physics, Beijing Institute of Technology, Beijing, People's Republic of China. wangfeng01@tsinghua.org.cn
authors.forename: Feng
authors.initials: F
authors.lastname: Wang
authors.forename: Xuhai
authors.initials: X
authors.lastname: Hong
authors.forename: Jian
authors.initials: J
authors.lastname: Wang
authors.forename: Kwang S
authors.initials: KS
authors.lastname: Kim