中国物理B ›› 2019, Vol. 28 ›› Issue (12): 123101-123101.doi: 10.1088/1674-1056/ab52f2

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Dynamics of the Au+H2 reaction by time-dependent wave packet and quasi-classical trajectory methods

Yong Zhang(张勇), Chengguo Jiang(姜成果)   

  1. Department of Physics, Tonghua Normal University, Tonghua 134002, China
  • 收稿日期:2019-08-30 修回日期:2019-10-15 出版日期:2019-12-05 发布日期:2019-12-05
  • 通讯作者: Yong Zhang E-mail:victor0536@163.com

Dynamics of the Au+H2 reaction by time-dependent wave packet and quasi-classical trajectory methods

Yong Zhang(张勇), Chengguo Jiang(姜成果)   

  1. Department of Physics, Tonghua Normal University, Tonghua 134002, China
  • Received:2019-08-30 Revised:2019-10-15 Online:2019-12-05 Published:2019-12-05
  • Contact: Yong Zhang E-mail:victor0536@163.com

摘要: Dynamics of the Au+H2 reaction are studied using time-dependent wave packet (TDWP) and quasi-classical trajectory (QCT) methods based on a new potential energy surface[Int. J. Quantum Chem. 118 e25493 (2018)]. The dynamic properties such as reaction probability, integral cross section, differential cross section and the distribution of product are studied at state-to-state level of theory. Furthermore, the present results are compared with the theoretical studies available. The results indicate that the complex-forming reaction mechanism is dominated in the reaction in the low collision energy region and the abstract reaction mechanism plays a dominant role at high collision energies. Different from previous theoretical calculations, the side-ways scattering signals are found in the present work and become more and more apparent with increasing collision energy.

关键词: reaction probability, integral cross section, time-dependent wave packet, quasi-classical trajectory

Abstract: Dynamics of the Au+H2 reaction are studied using time-dependent wave packet (TDWP) and quasi-classical trajectory (QCT) methods based on a new potential energy surface[Int. J. Quantum Chem. 118 e25493 (2018)]. The dynamic properties such as reaction probability, integral cross section, differential cross section and the distribution of product are studied at state-to-state level of theory. Furthermore, the present results are compared with the theoretical studies available. The results indicate that the complex-forming reaction mechanism is dominated in the reaction in the low collision energy region and the abstract reaction mechanism plays a dominant role at high collision energies. Different from previous theoretical calculations, the side-ways scattering signals are found in the present work and become more and more apparent with increasing collision energy.

Key words: reaction probability, integral cross section, time-dependent wave packet, quasi-classical trajectory

中图分类号:  (Molecular dynamics and other numerical methods)

  • 31.15.xv
34.50.-s (Scattering of atoms and molecules) 03.67.Lx (Quantum computation architectures and implementations)