Journal of Shanghai University(Natural Science Edition) ›› 2022, Vol. 28 ›› Issue (5): 896-907.doi: 10.12066/j.issn.1007-2861.2312

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Dynamic calculation method of bimolecular chemical reaction based on real-time path integral

LI Yongle1,2(), FAN Wenbin1, REN Wei1,2   

  1. 1. International Center of Quantum and Molecular Structures, College of Sciences, Shanghai University, Shanghai 200444, China
    2. Shanghai Key Laboratory of High Temperature Superconductors, College of Sciences, Shanghai University, Shanghai 200444, China
  • Received:2021-04-21 Online:2022-10-30 Published:2022-11-12
  • Contact: LI Yongle E-mail:yongleli@shu.edu.cn

Abstract:

The determination of reaction rate coefficients and kinetic isotope effects (KIE) and measurement of cross-section are indispensable to the study of combustion, atmospheric, and interstellar chemical kinetics and dynamics. However, these parameters cannot be accurately and efficiently calculated by common theoretical methods such as quantum scattering, transition state theory (TST), and quasi-classical trajectory. In recent years, the ring-polymer molecular dynamics (RPMD) theory has been successfully applied for the investigation of gas-phase bimolecular reaction dynamics. Driven by modern advances, RPMD can also be implemented in many new applications. This work will review the present challenges of and recent advances in RPMD.

Key words: path integral, rate coefficient, reaction cross-section, semiclassical

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