Artículo
Proposal for a modified Møller-Plesset perturbation theory
Autor/es | Cabo, Alejandro
Claro, Francisco Menéndez-Proupin, Eduardo Cruz Hernández, Norge Fernández Sanz, Javier |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada I Universidad de Sevilla. Departamento de Química Física |
Fecha de publicación | 2006 |
Fecha de depósito | 2020-10-01 |
Publicado en |
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Resumen | A modified version of the Møller-Plesset approach for obtaining the correlation energy associated with a
Hartree-Fock ground state is proposed. The method is tested in a model of interacting fermions that allows for
an ... A modified version of the Møller-Plesset approach for obtaining the correlation energy associated with a Hartree-Fock ground state is proposed. The method is tested in a model of interacting fermions that allows for an exact solution. Using up to third order terms improved results are obtained, even in the limit of loosely bound particles. Tested in molecules as well, the modified method appears to give improved results in symmetric systems. |
Cita | Cabo, A., Claro, F., Menéndez-Proupin, E., Cruz Hernández, N. y Fernández Sanz, J. (2006). Proposal for a modified Møller-Plesset perturbation theory. Physical Review A, 73 (1), 012510-. |
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