Residue-squaring diagonalisation method and the anharmonic oscillator View Full Text


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Article Info

DATE

1977-04

AUTHORS

P M Mathews, T R Govindarajan

ABSTRACT

A recently-formulated residue-squaring method for perturbation problems is subjected to an exacting test in its application to the problem of diagonalising the Hamiltonian of the nonlinear oscillator with quartic anharmonicity. Unlike other methods, this new iterative diagonalisation method enables several eigenvalues to be calculated simultaneously with little more labour than for a single eigenvalue. Values obtained for the four lowest even-parity levels of the anharmonic oscillator from just two or three iterations are shown to agree well with earlier accurate calculations. An approximate analytical formula for the energy levels is also presented. More... »

PAGES

363-370

References to SciGraph publications

Journal

TITLE

Pramana

ISSUE

4

VOLUME

8

Author Affiliations

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf02847806

DOI

http://dx.doi.org/10.1007/bf02847806

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1033295941


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