Thread: Expected value of Q(x,p) View Single Post
 Sci Advisor HW Helper P: 1,275 To find the expected value of Q(x,p) we evaluate $<\psi|Q(x,-i\hbar \frac{\partial }{\partial x})|\psi>$. But what do you do if you want to find, say, . How do you raise the derivative operator to the three-halves?