- #1
- 56
- 0
In my question I have to find what the commutation of a electrons kinetic and potentials energys are, in 3 Dimensions. I have started by finding the kinetic operator T and the potential energy from coloumbs law. I have then applied commutation brackets and I'm at the stage where I'm solving the commutation bracket for the x-direction. (and then apply symmetry for my 2 other axis) My question is, as we have to retain order when dealing with operators, how do I 'deal' with my
[tex]
\newcommand{\pd}[3]{ \frac{ \partial^{#3}{#1} }{ \partial {#2}^{#3} } }
xi \hbar \pd {} {x} {}
[/tex]
I presume I can't just differentate the x as I need to preserver order, does this just sit like this till I can 'deal' with it?
[tex]
\newcommand{\pd}[3]{ \frac{ \partial^{#3}{#1} }{ \partial {#2}^{#3} } }
xi \hbar \pd {} {x} {}
[/tex]
I presume I can't just differentate the x as I need to preserver order, does this just sit like this till I can 'deal' with it?