Artículo
Comment on: “Ground state energies from converging and diverging power series expansions”, Ann. Phys. 373 (2016) 456–469
Fecha de publicación:
01/2017
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 compare two alternative expansions for finite attractive wells. One of them is known from long ago and is given in terms of powers of the strength parameter. The other one is based on the solution of the equations of the Rayleigh–Schrödinger perturbation theory in a basis set of functions of period L. The analysis of exactly solvable models shows that although the exact solution of the problem with periodic boundary conditions yields the correct result when L→∞ the coefficients of the series for this same problem blow up and fail to produce the correct asymptotic expansion.
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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
Amore, Paolo; Fernández, Francisco Marcelo; Comment on: “Ground state energies from converging and diverging power series expansions”, Ann. Phys. 373 (2016) 456–469; Academic Press Inc Elsevier Science; Annals of Physics (New York); 376; 1-2017; 499-504
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