Recent content by Dinara

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    Undergrad Kinetic and Potential energy operators commutation

    Thank you so much! Great example!
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    Undergrad Kinetic and Potential energy operators commutation

    This does not make sense! (KE+PE)(psi) = KE (psi) + PE (psi), It does matter that eigenfunction has to be an eigenfunction of both KE and PE.
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    Undergrad Kinetic and Potential energy operators commutation

    No - I don't. Is the answer to my question in functional analysis?
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    Undergrad Kinetic and Potential energy operators commutation

    The sum doesn't matter. The thing is (KE+PE) psi is a wrong expression - since KE and PE operators have to have different wave functions. Yet, in every single quantum chemistry text it is this (KE+PE) psi that is solved for the hydrogen atom!
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    Undergrad Kinetic and Potential energy operators commutation

    Hi All, Perhaps I am missing something. Schrödinger equation is HPsi=EPsi, where H is hamiltonian = sum of kinetic energy operator and potential energy operator. Kinetic energy operator does not commute with potential energy operator, then how come they share the same wave function Psi? The...