Singularity in potential, perturbation and variational methods

Authors
Ding, YB Li, XQ Shen, PN
Citation
Yb. Ding et al., Singularity in potential, perturbation and variational methods, COMM TH PHY, 33(4), 2000, pp. 613-620
Citations number
12
Categorie Soggetti
Physics
Journal title
COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN journal
02536102 → ACNP
Volume
33
Issue
4
Year of publication
2000
Pages
613 - 620
Database
ISI
SICI code
0253-6102(20000615)33:4<613:SIPPAV>2.0.ZU;2-8
Abstract
We carefully study the energy eigen-values and splitting of heavy quarkonia as there exist l/r(3) and delta(3)((r) over right arrow) singular terms in the potential which make a direct numerical solution of the Schrodinger eq uation impossible. We compare the results obtained in terms of perturbation and variational methods with various treatments.