Using projection operators with maximum overlap methods to simplify challenging self‐consistent field optimization
Using projection operators with maximum overlap methods to simplify challenging self‐consistent field optimization
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使用具有最大重叠方法的投影算子来简化具有挑战性的自洽场优化
DOI:
10.1002/jcc.26797
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发表时间:
2021
影响因子:
3
通讯作者:
Hratchian, Hrant P.
中科院分区:
文献类型:
--
作者:
Corzo, Hector H.;Abou Taka, Ali;Pribram‐Jones, Aurora;Hratchian, Hrant P.
Maximum overlap methods are effective tools for optimizing challenging ground‐ and excited‐state wave functions using self‐consistent field models such as Hartree‐Fock and Kohn‐Sham density functional theory. Nevertheless, such models have shown significant sensitivity to the user‐defined initial guess of the target wave function. In this work, a projection operator framework is defined and used to provide a metric for non‐aufbau orbital selection in maximum‐overlap‐methods. The resulting algorithms, termed the Projection‐based Maximum Overlap Method (PMOM) and Projection‐based Initial Maximum Overlap Method (PIMOM), are shown to perform exceptionally well when using simple user‐defined target solutions based on occupied/virtual molecular orbital permutations. This work also presents a new metric that provides a simple and conceptually convenient measure of agreement between the desired target and the current or final SCF results during a calculation employing a maximum‐overlap method.
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DOI:
10.1021/acs.jpca.9b01103
发表时间:
2019
期刊:
The journal of physical chemistry. A
影响因子:
--
作者:
A. Izmaylov
通讯作者:
A. Izmaylov
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
E. Davidson;Larilyn Zeller Stenkamp
通讯作者:
Larilyn Zeller Stenkamp
影响因子:
4.4
作者:
H. Ye;Matthew Welborn;Nathan D. Ricke;T. Van Voorhis
通讯作者:
T. Van Voorhis
DOI:
10.1002/wcms.1394
发表时间:
2018-10
期刊:
Wiley Interdisciplinary Reviews: Computational Molecular Science
影响因子:
--
作者:
C. Marian;Adrian Heil;M. Kleinschmidt
通讯作者:
C. Marian;Adrian Heil;M. Kleinschmidt
影响因子:
5.5
作者:
I. G. Ryabinkin;Scott N. Genin;A. Izmaylov
通讯作者:
I. G. Ryabinkin;Scott N. Genin;A. Izmaylov