Machine learning exchange-correlation potential in time-dependent density-functional theory
Machine learning exchange-correlation potential in time-dependent density-functional theory
复制标题
时间相关密度泛函理论中的机器学习交换相关势
DOI:
10.1103/physreva.101.050501
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发表时间:
2020
影响因子:
2.9
通讯作者:
Haruyama Jun
中科院分区:
文献类型:
--
作者:
Suzuki Yasumitsu;Nagai Ryo;Haruyama Jun
We propose a machine-learning-based approach to develop the exchange-correlation potential of time-dependent density-functional theory (TDDFT). The neural network projection from the time-varying electron densities to the corresponding correlation potentials in the time-dependent Kohn-Sham equation is trained using a few exact datasets for a model system of electron-hydrogen scattering. We demonstrate that this neural network potential can capture the complex structures in the time-dependent correlation potential during the scattering process and provide correct scattering dynamics, which are not obtained by the standard adiabatic functionals. We also show that it is possible to incorporate the nonadiabatic (ormemory) effect in the potential with this machine learning technique, which significantly improves the accuracy of the dynamics. The method developed here offers a way to improve the exchange-correlation potential of TDDFT, which makes the theory a more powerful tool to study various excited state phenomena.
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DOI:
10.1039/c2cp24118h
发表时间:
2012
期刊:
Physical chemistry chemical physics : PCCP
影响因子:
--
作者:
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通讯作者:
S. White
影响因子:
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DOI:
10.1103/physreva.85.052510
发表时间:
2012
期刊:
arXiv: Chemical Physics
影响因子:
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P. Elliott;N. Maitra
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N. Maitra
影响因子:
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通讯作者:
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DOI:
--
发表时间:
2018
期刊:
European Physical Journal B : Condensed Matter Physics
影响因子:
--
作者:
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