Role of the Permanent Dipole Moment in Coulomb Explosion

作     者：ZHANG Cai-Ping MIAO Xiang-Yang 张彩萍;苗向阳

作者机构：College of Physics and Information EngineeringShanxi Normal UniversityLinfen 041004 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2013年第30卷第10期

页      面：68-72页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant No 11047191 the Key Project of the Ministry of Education of China under Grant No 211025 the Research Fund for the Doctoral Program of Higher Education of China under Grant No 20111404120004 the Natural Science Foundation for Young Scientists of Shanxi Province under Grant No 2009021005 

主　　题：method excited dipole 

摘      要：By numerically solving the non-Born–Oppenheimer time-dependent Schr?dinger equation in a few-cycle chirped laser field(5-fs,800-nm),the effect of the permanent dipole moment on the Coulomb explosion is studied by the kinetic-energy-release spectra with thevirtual detector*** results indicate that with the effect of the permanent dipole moment,different multiphoton processes for heteronuclear and homonuclear diatomic molecular ions may take place when the wave packets transit from the ground state(1sσg)to the first excited state(2pσu),and then move along the excited potential curve,and finally charge-resonant enhanced ionization occurs at critical internuclear *** a result,despite the similar ionization probabilities for these two systems at higher vibrational level with larger chirp parameterβ,the structure of the Coulomb explosion spectrum for the former is prominently different from that for the latter.