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zb23
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Why in order to derive the QM momentum operator we use the plane wave solution. Why later on in field theory and particle physics, the plane wave ansatz is so physically important?
That's the main basis for mathematical physics. Why represent force as a vector? Why is time a parameter in non-relativistic physics? Why have a spacetime manifold in relativity?zb23 said:I mean I can't be satisfied with the argument that it gives nice solutions.
Can you give some specfic references to arguments that you find lacking?zb23 said:some arguments for plane wave solutions, for me, lack some structure
You don't have to do it in that old-fashioned way.zb23 said:Why in order to derive the QM momentum operator we use the plane wave solution.