Recent content by mat1z

Sorry, simultaneous measurements is what I was trying to say, of course. Thanks.

Alright, thanks for the reply. So, does that mean that the only real information contained in commutators as such (and not their application, as in constructing angular momentum eigenstates) is in it being zero or not? It's clear to me that zero commutators imply instantaneous measurability...

Task: The task is to compute the commutator of L^2 with all components of the r-vector. It seems to be an unusual task for I was unable to find it in any book. Known stuff: I know that [L_i,x_j]=i \hbar \epsilon_{ijk} x_k (\epsilon_{ijk} being the Levi-Civita symbol). Now I would go about as...