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arXiv 2202.05421physics.chem-ph
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Berry Force效应在最少开关表面跳跃算法中的应用:系间交叉和电子简并情况

Incorporating Berry Force Effects into The Fewest Switches Surface Hopping Algorithm: Intersystem Crossing and The Case of Electronic Degeneracy

Xuezhi Bian, Yanze Wu, Hung-Hsuan Teh, Joseph E. Subotnik

摘要:

我们提出了一个初步的表面跳跃的方法建模系统间交叉(ISC)动力学之间的四个电子状态:一个单重态和一个(三重简并)三重态。为了结合所有的贝瑞力效应,该算法要求,当沿着与三重态流形相关联的绝热表面移动时,\mycomment {还必须跟踪每个轨迹的准非绝热指数(类似于“$m_s$“量子数)。对于一个简单的模型问题,我们发现我们的算法可以捕获大量的新物理,为将来更大,更现实(甚至是{ \em ab initio})的模拟奠定了基础。

英文摘要:

We present a preliminary surface-hopping approach for modeling intersystem crossing (ISC) dynamics between four electronic states: one singlet and one (triply degenerate) triplet. In order to incorporate all Berry force effects, the algorithm requires that, when moving along an adiabatic surface associated with the triplet manifold, \mycomment{one must also keep track of a quasi-diabatic index (akin to a "$m_s$" quantum number) for each trajectory. For a simple model problem, we find that a great deal of new physics can be captured by our algorithm, setting the stage for larger, more realistic (or perhaps even {\em ab initio}) simulations in the future.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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