中国物理B ›› 2020, Vol. 29 ›› Issue (8): 83202-083202.doi: 10.1088/1674-1056/ab9c0f

• SPECIAL TOPIC—Ultracold atom and its application in precision measurement • 上一篇    下一篇

Multiphoton quantum dynamics of many-electron atomic and molecular systems in intense laser fields

Peng-Cheng Li(李鹏程), Shih-I Chu   

  1. 1 Research Center for Advanced Optics and Photoelectronics, Department of Physics, College of Science, Shantou University, Shantou 515063, China;
    2 Key Laboratory of Intelligent Manufacturing Technology of MOE, Shantou University, Shantou 515063, China;
    3 Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, USA
  • 收稿日期:2020-04-27 修回日期:2020-06-05 出版日期:2020-08-05 发布日期:2020-08-05
  • 通讯作者: Peng-Cheng Li E-mail:pchli@stu.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11674268 and 11764038), the Natural Science Foundation of Guangdong Province, China (Grant No. 2020A1515010927), and Department of Education of Guangdong Province, China (Grant Nos. 2018KCXTD011 and 2019KTSCX037).

Multiphoton quantum dynamics of many-electron atomic and molecular systems in intense laser fields

Peng-Cheng Li(李鹏程)1,2, Shih-I Chu3   

  1. 1 Research Center for Advanced Optics and Photoelectronics, Department of Physics, College of Science, Shantou University, Shantou 515063, China;
    2 Key Laboratory of Intelligent Manufacturing Technology of MOE, Shantou University, Shantou 515063, China;
    3 Department of Chemistry, University of Kansas, Lawrence, Kansas 66045, USA
  • Received:2020-04-27 Revised:2020-06-05 Online:2020-08-05 Published:2020-08-05
  • Contact: Peng-Cheng Li E-mail:pchli@stu.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11674268 and 11764038), the Natural Science Foundation of Guangdong Province, China (Grant No. 2020A1515010927), and Department of Education of Guangdong Province, China (Grant Nos. 2018KCXTD011 and 2019KTSCX037).

摘要:

We present the recent new developments of time-dependent Schrödinger equation and time-dependent density-functional theory for accurate and efficient treatment of the electronic structure and time-dependent quantum dynamics of many-electron atomic and molecular systems in intense laser fields. We extend time-dependent generalized pseudospectral (TDGPS) numerical method developed for time-dependent wave equations in multielectron systems. The TDGPS method allows us to obtain highly accurate time-dependent wave functions with the use of only a modest number of spatial grid point for complex quantum dynamical calculations. The usefulness of these procedures is illustrated by a few case studies of atomic and molecular processes of current interests in intense laser fields, including multiphoton ionization, above-threshold ionization, high-order harmonic generation, attosecond pulse generation, and quantum dynamical processes related to multielectron effects. We conclude this paper with some open questions and perspectives of multiphoton quantum dynamics of many-electron atomic and molecular systems in intense laser fields.

关键词: multiphoton ionization, above-threshold ionization, high-order harmonic generation, attosecond pulse generation

Abstract:

We present the recent new developments of time-dependent Schrödinger equation and time-dependent density-functional theory for accurate and efficient treatment of the electronic structure and time-dependent quantum dynamics of many-electron atomic and molecular systems in intense laser fields. We extend time-dependent generalized pseudospectral (TDGPS) numerical method developed for time-dependent wave equations in multielectron systems. The TDGPS method allows us to obtain highly accurate time-dependent wave functions with the use of only a modest number of spatial grid point for complex quantum dynamical calculations. The usefulness of these procedures is illustrated by a few case studies of atomic and molecular processes of current interests in intense laser fields, including multiphoton ionization, above-threshold ionization, high-order harmonic generation, attosecond pulse generation, and quantum dynamical processes related to multielectron effects. We conclude this paper with some open questions and perspectives of multiphoton quantum dynamics of many-electron atomic and molecular systems in intense laser fields.

Key words: multiphoton ionization, above-threshold ionization, high-order harmonic generation, attosecond pulse generation

中图分类号:  (Multiphoton ionization and excitation to highly excited states)

  • 32.80.Rm
33.80.Rv (Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states)) 42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)