https://doi.org/10.1140/epjp/s13360-021-01086-8
Regular Article
Revisiting an isospectral extension of the Morse potential
Physique Nucléaire Théorique et Physique Mathématique, Université Libre de Bruxelles, Campus de la Plaine CP229, Boulevard du Triomphe, 1050, Brussels, Belgium
Received:
7
December
2020
Accepted:
8
January
2021
Published online:
23
January
2021
A very simple method is devised to derive a (strictly) isospectral extension of the Morse potential. Furthermore, point canonical transformations are used to transform the latter into quasi-exactly solvable extensions of the radial oscillator and the Coulomb potentials.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
