Recent content by Mark_L

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    Commutators of angular momentum, linear momentum squared and H

    Okay, so what about the next part? We have ##\hat{H}=\frac{1}{2m}\hat{\mathbf{P^2}}+V##
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    Commutators of angular momentum, linear momentum squared and H

    Why are they zero?
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    Commutators of angular momentum, linear momentum squared and H

    Homework Statement For the linear momentum operator ##\hat{\mathbf{p}}## and angular momentum operator ##\hat{\mathbf{L}} ##, prove that ##\begin{eqnarray} [\hat{\mathbf{L}},\hat{\mathbf{p}}^2]&=&0\end{eqnarray}##: [Hint: Write ##\hat{\mathbf{L}}## as the ##x##-component of the angular...