THE STRONG-COUPLING EXPANSION FOR ANHARMONIC-OSCILLATORS

Authors
FERNANDEZ FM GUARDIOLA R
Citation
Fm. Fernandez et R. Guardiola, THE STRONG-COUPLING EXPANSION FOR ANHARMONIC-OSCILLATORS, Journal of physics. A, mathematical and general, 30(20), 1997, pp. 7187-7192
Citations number
28
Categorie Soggetti
Physics,"Physycs, Mathematical
Journal title
Journal of physics. A, mathematical and general → ACNP
ISSN journal
03054470
Volume
30
Issue
20
Year of publication
1997
Pages
7187 - 7192
Database
ISI
SICI code
0305-4470(1997)30:20<7187:TSEFA>2.0.ZU;2-W
Abstract
We accurately calculate the strong coupling expansion for anharmonic o scillators by means of a robust and stable numerical algorithm. The me thod applies to any stare and to any anharmonicity degree. By means of the perturbation coefficients, we estimate the location of the branch points that determine the convergence radius of the strong coupling e xpansion.