Comment on: "Ground state energies from converging and diverging power series expansions", <i>Ann. Phys</i>. 373 (2016): 456-469

dc.creatorAmore, Paolo
dc.creatorFernández, Francisco Marcelo
dc.date2017
dc.date2020-11-18T15:34:35Z
dc.date.accessioned2023-07-14T23:22:28Z
dc.date.available2023-07-14T23:22:28Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/109384
dc.identifierhttps://www.sciencedirect.com/science/article/abs/pii/S0003491616302883
dc.identifierissn:0003-4916
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7450394
dc.descriptionWe 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.
dc.descriptionFacultad de Ciencias Exactas
dc.descriptionInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
dc.formatapplication/pdf
dc.format499-504
dc.languagees
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectCiencias Exactas
dc.subjectQuímica
dc.subjectfinite attractive well
dc.subjectperturbation expansion
dc.subjectasymptotic expansion
dc.subjectperiodic boundary conditions
dc.subjectsquare potential
dc.subjectDirac delta potential
dc.titleComment on: "Ground state energies from converging and diverging power series expansions", <i>Ann. Phys</i>. 373 (2016): 456-469
dc.typeArticulo
dc.typeComunicacion


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