Residue-squaring iterative diagonalization method for perturbation problems View Full Text


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Article Info

DATE

1975-02

AUTHORS

P M Mathews

ABSTRACT

We present a new method for the evaluation of the change in eigenvalues due to a perturbation of strength λ. It is a fast converging iterative method which, at thenth step, gives results accurate to order (2n+1−1) in λ. Unlike the Rayleigh-Schrödinger perturbation theory in quantum mechanics, which becomes prohibitively cumbersome when carried to higher orders, the present method involves a routine which remains stralghtforward at all stages. More... »

PAGES

53-54

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf02848035

DOI

http://dx.doi.org/10.1007/bf02848035

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1009579708


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