Show operator can be an eigenfunction of another operator given commutation relation

vela

They don't. If P and Q commute, that means [P,Q]=0. You're given that [P,Q]=P (or [P,Q]=Q), so P and Q obviously don't commute.

vela Recognitions: Gold Member Homework Help Science Advisor Staff Emeritus	They don't. If P and Q commute, that means [P,Q]=0. You're given that [P,Q]=P (or [P,Q]=Q), so P and Q obviously don't commute.