IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Highly Accurate Calculation of the Real and Complex Eigenvalues of One-Dimensional Anharmonic Oscillators
Autor/es:
JAVIER GARCÍA; FRANCISCO M. FERNÁNDEZ
Revista:
Acta polytechnica
Editorial:
Czech Technical University in Prague
Referencias:
Lugar: Praga; Año: 2017 vol. 57 p. 391 - 398
ISSN:
1210-2709
Resumen:
We draw attention on the fact that the Riccati-Padé method developed some time ago enablesthe accurate calculation of bound-state eigenvalues as well as of resonances embedded either in the continuum or in the discrete spectrum. We apply the approach to several one-dimensional models that exhibit different kind of spectra. In particular we test a WKB formula for the imaginary part of the resonance in the discrete spectrum of a three-well potential.