# Interesting post by +David Ketcheson po

Interesting post by +David Ketcheson pointing out that neither the Schrodinger equation nor the wave equation are reaction-diffusion systems. In Ready (http://code.google.com/p/reaction-diffusion/) we include both of these systems without worrying about this distinction.

Schrodinger's equation is particularly neat when expanded into real and imaginary components:

da = -Laplacian(b); db = Laplacian(a);

But his point is that each depends on the Laplacian of the

Schrodinger's equation is particularly neat when expanded into real and imaginary components:

da = -Laplacian(b); db = Laplacian(a);

But his point is that each depends on the Laplacian of the

*other*, not itself.### The Schrodinger equation is not a reaction-diffusion equation

Shared with: Public, David Ketcheson

+1'd by: Dave Wonnacott

Reshared by: Dave Gordon

*This post was originally on Google+*