rubi
Science Advisor
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But it's not modeled as an observable on Hilbert space. That's what you need in order to get the projections I used in my definition. In a quantum theory, every physical object has a corresponding self-adjoint operator that models it. This is not the case for the "physical object" called wave function. The wave function in your theory of real wave functions is not a quantum object itself.atyy said:The wave function is still an object in Hilbert space. It's just that there is a copy of Hilbert space at every point in space.