multiple spatial derivitives of psi leads to non-locality

[teds@intex.com]

I've read several times that in the Schrodinger eq., if there are
multiple # of spatial derivatives of the wave function then this leads
to the wave function being non-local.
How does this happen?

Thanks,

Ted

[Darth Sidious]

teds@intex.com wrote:
> I've read several times that in the Schrodinger eq., if there are
> multiple # of spatial derivatives of the wave function then this leads
> to the wave function being non-local.

What is a: "non-local wave function" ?