A variable interval variable step method for the solution of linear second order coupled differential equations

A new method for the numerical solution of the linear second order coupled differential equations of quantum scattering theory is presented. A formal framework is set up which makes clear the interrelationships between many currently used integration methods. Our variable interval variable step meth...

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Published in:The Journal of chemical physics 1980-08, Vol.73 (4), p.1757-1764
Main Authors: Parker, Gregory A., Schmalz, Thomas G., Light, John C.
Format: Article
Language:English
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cited_by cdi_FETCH-LOGICAL-c252t-29aecdcb3b3b261559d7de70e93ab936533cc10ac04f3fe41d7e825221d034a03
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description A new method for the numerical solution of the linear second order coupled differential equations of quantum scattering theory is presented. A formal framework is set up which makes clear the interrelationships between many currently used integration methods. Our variable interval variable step method is designed to reduce the total number of matrix (N3) operations required for solution at a given accuracy. The method is tested on several problems and is shown to be uniformly and rapidly convergent, stable, and significantly faster than previous methods.
doi_str_mv 10.1063/1.440311
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title A variable interval variable step method for the solution of linear second order coupled differential equations
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