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Start Over Author "Wen-Fa Lu" Journal journal of physics a: mathematical and theoretical
1 results on '"Wen-Fa Lu"'

1. The multistate Rayleigh–Ritz variational method with the principle of minimal sensitivity for anharmonic oscillators

Author

Kyun Nahm, Chul Koo Kim, and Wen-Fa Lu

Subjects
Statistics and Probability, Rayleigh–Ritz method, Anharmonicity, General Physics and Astronomy, Statistical and Nonlinear Physics, Variational method, Nonlinear parameters, Modeling and Simulation, Quantum mechanics, Applied mathematics, Sensitivity (control systems), Mathematical Physics, Energy (signal processing), Eigenvalues and eigenvectors, Mathematics
Abstract

A theoretical scheme to employ the principle of minimal sensitivity for choosing the optimal values of nonlinear parameters is proposed for the multistate Rayleigh–Ritz variational method. Anharmonic oscillators are particularly considered in this paper. Applications of the present scheme to the one-dimensional Morse and two double-well potentials indicate that it provides much more accurate and faster convergent approximations to the exact energy eigenvalues than several schemes existing in the literatures.

Published
2007
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