Bohmian trajectory perspective on strong field atomic processes  

作　　者：Xuan-Yang Lai Xiao-Jun Liu 赖炫扬;柳晓军(State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics,Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences)

机构地区：[1]State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics,Wuhan Institute of Physics and Mathematics,Innovation Academy for Precision Measurement Science and Technology,Chinese Academy of Sciences,Wuhan 430071,China

出　　处：《Chinese Physics B》2020年第1期1-8,共8页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11922413,11834015,11874392,11804374,11847243,and 11774387);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB21010400)

摘　　要：The interaction of an atom with an intense laser field provides an important approach to explore the ultrafast electron dynamics and extract the information of the atomic and molecular structures with unprecedented attosecond temporal and angstrom spatial resolution. To well understand the strong field atomic processes, numerous theoretical methods have been developed, including solving the time-dependent Schr ?dinger equation(TDSE), classical and semiclassical trajectory method, quantum S-matrix theory within the strong-field approximation, etc. Recently, an alternative and complementary quantum approach, called Bohmian trajectory theory, has been successfully used in the strong-field atomic physics and an exciting progress has been achieved in the study of strong-field phenomena. In this paper, we provide an overview of the Bohmian trajectory method and its perspective on two strong field atomic processes, i.e., atomic and molecular ionization and high-order harmonic generation, respectively.The interaction of an atom with an intense laser field provides an important approach to explore the ultrafast electron dynamics and extract the information of the atomic and molecular structures with unprecedented attosecond temporal and angstrom spatial resolution.To well understand the strong field atomic processes,numerous theoretical methods have been developed,including solving the time-dependent Schrodinger equation(TDSE),classical and semiclassical trajectory method,quantum S-matrix theory within the strong-field approximation,etc.Recently,an alternative and complementary quantum approach,called Bohmian trajectory theory,has been successfully used in the strong-field atomic physics and an exciting progress has been achieved in the study of strong-field phenomena.In this paper,we provide an overview of the Bohmian trajectory method and its perspective on two strong field atomic processes,i.e.,atomic and molecular ionization and high-order harmonic generation,respectively.

关 键 词：Bohmian trajectory strong-field ionization high-order harmonic generation 

分 类 号：O562[理学—原子与分子物理]