Accurate analytic approximations to eigenvalues anharmonic potentials x2+λx8

Precise analytic approximations have been found for the eigenvalues of the ground state in the anharmonic potentials x2+λx8. Rational functions combined with fractional powers are used to determine the new approximations. First, power series in the parameter has been found using an extension of the...

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Bibliographic Details
Main Authors: Pablo Martin, Fernando Maass, Daniel Diaz-Almeida
Format: Article
Language:English
Published: Elsevier 2020-03-01
Series:Results in Physics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379719326270