Home › Forums › Hyperfine course › electric quadrupole interaction › quadrupole operator › axial symmetry This topic has 0 replies, 1 voice, and was last updated 2 months ago by sennedebruyn. Viewing 1 post (of 1 total) Author Posts March 11, 2025 at 2:57 pm #6366 sennedebruynParticipant 1) if V_xx = Vyy or eta = 0 2) if it is invariant under rotation around the z axis Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In