Typically in mathematics time derivative is linear in the sense that constants are pulled out the operator which then operates on a time dependent function. But in quantum mechanics we say linear to mean that the operator passes over the coefficients of the kets (which themselves might be time dependent, and therefore the derivative is nonlinear).(adsbygoogle = window.adsbygoogle || []).push({});

So is the energy operator linear?

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# Is the energy operator (time derivative) a linear one?

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