A three operator split-step method covering a larger set of non-linear partial differential equations

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Abstract

This paper describes an updated exponential Fourier based split-step method that can be applied to a greater class of partial differential equations than previous methods would allow. These equations arise in physics and engineering, a notable example being the generalized derivative non-linear Schrödinger equation that arises in non-linear optics with self-steepening terms. These differential equations feature terms that were previously inaccessible to model accurately with low computational resources. The new method maintains a 3rd order error even with these additional terms and models the equation in all three spatial dimensions and time. The class of non-linear differential equations that this method applies to is shown. The method is fully derived and implementation of the method in the split-step architecture is shown. This paper lays the mathematical ground work for an upcoming paper employing this method in white-light generation simulations in bulk material.
Original languageEnglish
Article numberj.cnsns.2016.11.020
Pages (from-to)277-291
JournalCommunications in Nonlinear Science and Numerical Simulation
Volume47
DOIs
Publication statusPublished - Jun 2017
Externally publishedYes

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