Artículo
Comment on: “Solving many-body Schrödinger equations with kinetic energy partition method”, Ann. Phys. 388 (2018) 54–68 by Y-H. Chen and S.D. Chao
Fecha de publicación:
07/2019
Editorial:
Academic Press Inc Elsevier Science
Revista:
Annals of Physics (New York)
ISSN:
0003-4916
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We discuss a recent test of the performance of the kinetic energy partition method (KEP) through its application to two separable quantum-mechanical models. We argue that one of the benchmark models is exceedingly simple for testing any realistic approximate method and that almost any reasonable approach yields better results. In the second example our exact benchmark eigenvalues disagree considerably with those chosen by the authors for comparison, which casts doubts on the accuracy of their KEP approach.
Palabras clave:
COUPLED OSCILLATOR
,
HARMONIUM ATOM
,
KEP
,
RICCATI
,
VARIATIONAL METHOD
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Articulos(INIFTA)
Articulos de INST.DE INV.FISICOQUIMICAS TEORICAS Y APLIC.
Articulos de INST.DE INV.FISICOQUIMICAS TEORICAS Y APLIC.
Citación
Fernández, Francisco Marcelo; Comment on: “Solving many-body Schrödinger equations with kinetic energy partition method”, Ann. Phys. 388 (2018) 54–68 by Y-H. Chen and S.D. Chao; Academic Press Inc Elsevier Science; Annals of Physics (New York); 406; 7-2019; 108-113
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