Note on an Approximation Treatment for Many-Electron Systems
Chr. Møller,Milton S. Plesset +1 more
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In this article, a perturbation theory for treating a system of n electrons in which the Hartree-Fock solution appears as the zero-order approximation was developed, and it was shown by this development that the first order correction for the energy and the charge density of the system is zero.Abstract:
A perturbation theory is developed for treating a system of n electrons in which the Hartree-Fock solution appears as the zero-order approximation. It is shown by this development that the first order correction for the energy and the charge density of the system is zero. The expression for the second-order correction for the energy greatly simplifies because of the special property of the zero-order solution. It is pointed out that the development of the higher approximation involves only calculations based on a definite one-body problem.read more
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Approximate treatment of higher excitations in coupled-cluster theory.
Mihály Kállay,Jürgen Gauss +1 more
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Origin of the Attraction and Directionality of the NH/π Interaction: Comparison with OH/π and CH/π Interactions
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Basis set convergence of the interaction energy of hydrogen-bonded complexes
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NWChem: Past, present, and future
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Advances, Applications and Performance of the Global Arrays Shared Memory Programming Toolkit
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