The wavefunction psi is often separated into two parts, the time dependent part and the part which has only spatial dependence (phi), and this I think can only be done if we assume that the potential is not a function of time. I often see proofs where we have H acting on phi (not psi) and we get H (phi1) = E1*phi1. However this equation is essentially just the TISE, which of course only applies for time independent potentials. Does this mean that we should generally assume that the potential is not a function of time while working with eigenfunctions of different observables?(adsbygoogle = window.adsbygoogle || []).push({});

Also, does the potential not being a function of time essentially the same as having an isolated system?

Sachi

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# Homework Help: Serious conceptual problem with QM (eigenfunctions)

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