I have just done a question and then looked at the solution which I don't get. The question gives a wavefunction as u = x - iy. It then asks if this function is an eigenfunction of the kinetic energy operator in 3-D. Applying this operator to u gives zero. I took this to mean that u is an eigenfunction with eigenvalue zero but the solution says that u is not an eigenfunction. Am I right or what is wrong with my argument ? Thanks(adsbygoogle = window.adsbygoogle || []).push({});

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# KE operator and eigenfunctions

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