Inspired by the branching corrected surface hopping (BCSH) method [J. Xu and L. Wang, J. Chem. Phys. 150, 164101 (2019)], we present two new decoherence time formulas for trajectory surface hopping. Both the proposed linear and exponential formulas characterize the decoherence time as functions of the energy difference between adiabatic states and correctly capture the decoherence effect due to wave packet reflection as predicted by BCSH. The relevant parameters are trained in a series of 200 diverse models with different initial nuclear momenta, and the exact quantum solutions are utilized as references. As demonstrated in the three standard Tully models, the two new approaches exhibit significantly higher reliability than the widely used counterpart algorithm while holding the appealing efficiency, thus promising for nonadiabatic dynamics simulations of general systems.
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October 2020
Research Article|
October 01 2020
New energy-based decoherence correction approaches for trajectory surface hopping†
Bing-yang Xiao;
Bing-yang Xiao
Center for Chemistry of Novel & High-Performance Materials, and
Department of Chemistry, Zhejiang University
, Hangzhou 310027, China
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Jia-bo Xu;
Jia-bo Xu
Center for Chemistry of Novel & High-Performance Materials, and
Department of Chemistry, Zhejiang University
, Hangzhou 310027, China
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Lin-jun Wang
Lin-jun Wang
*
Center for Chemistry of Novel & High-Performance Materials, and
Department of Chemistry, Zhejiang University
, Hangzhou 310027, China
*Author to whom correspondence should be addressed.
E-mail: ljwang@zju.edu.cn
Search for other works by this author on:
*Author to whom correspondence should be addressed.
E-mail: ljwang@zju.edu.cn
†
Part of the special issue for “the Chinese Chemical Society’s 16th National Chemical Dynamics Symposium”.
Chin. J. Chem. Phys. 33, 603–612 (2020)
Article history
Received:
June 16 2020
Accepted:
July 18 2020
Citation
Bing-yang Xiao, Jia-bo Xu, Lin-jun Wang; New energy-based decoherence correction approaches for trajectory surface hopping. Chin. J. Chem. Phys. 1 October 2020; 33 (5): 603–612. https://doi.org/10.1063/1674-0068/cjcp2006098
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