Solving the Schrödinger equation of atoms and molecules without analytical integration based on the free iterative-complement-interaction wave function

H. Nakatsuji, H. Nakashima, Y. Kurokawa, A. Ishikawa

研究成果: Article

60 引用 (Scopus)

抄録

A local Schrödinger equation (LSE) method is proposed for solving the Schrödinger equation (SE) of general atoms and molecules without doing analytic integrations over the complement functions of the free ICI (iterative-complement-interaction) wave functions. Since the free ICI wave function is potentially exact, we can assume a flatness of its local energy. The variational principle is not applicable because the analytic integrations over the free ICI complement functions are very difficult for general atoms and molecules. The LSE method is applied to several 2 to 5 electron atoms and molecules, giving an accuracy of 10-5 Hartree in total energy. The potential energy curves of H2 and LiH molecules are calculated precisely with the free ICI LSE method. The results show the high potentiality of the free ICI LSE method for developing accurate predictive quantum chemistry with the solutions of the SE.

元の言語English
記事番号240402
ジャーナルPhysical Review Letters
99
発行部数24
DOI
出版物ステータスPublished - 2007 12 12
外部発表Yes

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complement
wave functions
atoms
molecules
interactions
quantum chemistry
flatness
variational principles
potential energy
energy
curves
electrons

ASJC Scopus subject areas

  • Physics and Astronomy(all)

これを引用

Solving the Schrödinger equation of atoms and molecules without analytical integration based on the free iterative-complement-interaction wave function. / Nakatsuji, H.; Nakashima, H.; Kurokawa, Y.; Ishikawa, A.

:: Physical Review Letters, 巻 99, 番号 24, 240402, 12.12.2007.

研究成果: Article

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