Abstract
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.
| Original language | English |
|---|---|
| Article number | 240402 |
| Journal | Physical Review Letters |
| Volume | 99 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - 2007 Dec 12 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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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.
In: Physical Review Letters, Vol. 99, No. 24, 240402, 12.12.2007.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Solving the Schrödinger equation of atoms and molecules without analytical integration based on the free iterative-complement-interaction wave function
AU - Nakatsuji, H.
AU - Nakashima, H.
AU - Kurokawa, Y.
AU - Ishikawa, A.
PY - 2007/12/12
Y1 - 2007/12/12
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=37249011326&partnerID=8YFLogxK
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U2 - 10.1103/PhysRevLett.99.240402
DO - 10.1103/PhysRevLett.99.240402
M3 - Article
AN - SCOPUS:37249011326
VL - 99
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 24
M1 - 240402
ER -