Neither in Sam Treiman's http://books.google.de/books?id=e7fmufgvE-kC" I was able to find the Schrödinger equation for a photon, i.e. a particle without rest mass. The Schrödinger equation straight from Treiman's book (typos are mine, if any)(adsbygoogle = window.adsbygoogle || []).push({});

[tex]-\frac{\hbar^2}{2m}\Delta\Psi + V\Psi = i\hbar\frac{\partial\Psi}{\partial t}[/tex]

with potential [itex]V[/itex] and the Laplace-Operator [itex]\Delta[/itex] applied for all coordinates except [itex]t[/itex], does contain the (rest)mass [itex]m[/itex] in the denominator, so I guess this won't work for the photon.

How then does the equation look like to cover massless particles? Or does it not apply?

Thanks,

Harald.

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# Photon / Schrödinger equation

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