ACCURATE COMPUTATION OF THE ENERGY-SPECTRUM FOR POTENTIALS WITH MULTIMINIMA

Date

1993-01-01

Author

Taşeli, Hasan

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The eigenvalues of the Schrodinger equation with a polynomial potential are calculated accurately by means of the Rayleigh-Ritz variational method and a basis set of functions satisfying Dirichlet boundary conditions. The method is applied to the well potentials having one, two, and three minima. It is shown, in the entire range of coupling constants, that the basis set of trigonometric functions has the capability of yielding the energy spectra of unbounded problems without any loss of convergence providing that the boundary value alpha remains greater than a critical value alpha(cr). Only the computation of the nearly degenerate states of multiwell oscillators requires dealing with a relatively large truncation order.

Subject Keywords

Physical and Theoretical Chemistry, Atomic and Molecular Physics, and Optics, Condensed Matter Physics

URI

https://hdl.handle.net/11511/40781

Journal

INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY

DOI

https://doi.org/10.1002/qua.560460207

Collections

Department of Mathematics, Article

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Citation Formats

H. Taşeli, “ACCURATE COMPUTATION OF THE ENERGY-SPECTRUM FOR POTENTIALS WITH MULTIMINIMA,” INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, pp. 319–334, 1993, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40781.