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Learning Pairwise Interaction for Extrapolative and Interpretable Machine Learning Interatomic Potentials with Physics-Informed Neural Network

delete2025-04-14
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PRE
AI
H
Hoje Chun
M
Minjoon Hong
S
Seung Hyo Noh
DOI:10.1021/acs.jctc.5c00090delete
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摘要

摘要

En 中文
在原子模拟的机器学习原子间势能(ML-IPs)中同时实现鲁棒的外推能力和物理可解释性仍然是一个重大挑战,尤其是在化学反应或极端条件下复杂、多组分材料等数据稀疏领域。在此,我们提出了一种成对分解的物理信息神经网络(P2Net),其通过参数化一个解析键序势(BOP)层来解耦原子对的能量贡献。通过利用基本的物理原理,P2Net在超越其训练范围时表现出卓越的外推能力,并能精确捕捉远离平衡态的分子几何构型。成对能量分解进一步增强了脱质子化和SN2反应的键分析能力,而大多数ML-IPs难以实现这一点。原子对能量揭示了如何阐明反应过程中原子间相互作用的演变。我们的方法突出了构建ML-IPs的数据效率提升,并促进了更具信息量的后模拟分析,从而扩展了ML-IPs在复杂和反应性系统中的应用范围。

期刊

Journal of Chemical Theory and Computation 封面图
Journal of Chemical Theory and Computation
IF:
5.5
论文数:
1.1W
被引数:
5.4W

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