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I am studying the use of split step fourier method to solve NLS-typed equations.

One problem is that, for this type of equations:

iAt+Axx+|A|^2A+C=0, where C is a constant

How shall I implement the split step fourier method?

I find no where to put my constant C because it is not multiplied with A, so I can't really put it in the linear or nonlinear part, is it?

Any idea? Thanks

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# Split Step Fourier Method

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