IMPROVED HILL DETERMINANT METHOD FOR THE SOLUTION OF QUANTUM ANHARMONIC-OSCILLATORS

Authors
AGRAWAL RK VARMA VS
Citation
Rk. Agrawal et Vs. Varma, IMPROVED HILL DETERMINANT METHOD FOR THE SOLUTION OF QUANTUM ANHARMONIC-OSCILLATORS, Physical review. A, 49(6), 1994, pp. 5089-5091
Citations number
6
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
49
Issue
6
Year of publication
1994
Pages
5089 - 5091
Database
ISI
SICI code
1050-2947(1994)49:6<5089:IHDMFT>2.0.ZU;2-8
Abstract
In a recent paper, Chaudhuri and Mondal [Phys. Rev. A 43, 3241 (1991)] have reported an improved Hill determinant method for the calculation of the eigenvalues of general quantum anharmonic oscillators. However , the accuracy of their calculations is restricted by their use of a n onrecursive matrix diagonalization scheme. We show how considerably gr eater accuracy can be achieved by the use of tridiagonal vector recurr ence relations.