DOUBLE-WELL MODEL V(R)=AR(2)-LESS-THAN-0 AND PERTURBATION METHOD WITHTRIANGULAR PROPAGATORS(BR(4)+CR(6) WITH A)

Authors
ZNOJIL M
Citation
M. Znojil, DOUBLE-WELL MODEL V(R)=AR(2)-LESS-THAN-0 AND PERTURBATION METHOD WITHTRIANGULAR PROPAGATORS(BR(4)+CR(6) WITH A), Physics letters. A, 222(5), 1996, pp. 291-298
Citations number
29
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
222
Issue
5
Year of publication
1996
Pages
291 - 298
Database
ISI
SICI code
0375-9601(1996)222:5<291:DMVAPM>2.0.ZU;2-K
Abstract
We propose a new version of the Rayleigh-Schrodinger perturbation pres cription suitable for tridiagonal zero-order Hamiltonians. It picks up an unusual model space and its unperturbed propagators remain easily invertible lower triangular matrices as a consequence. Its efficiency is illustrated on sextic potentials with double-well shape.