Home › Forums › Hyperfine course › electric quadrupole interaction › quadrupole operator › Presence of axial symmetry This topic has 0 replies, 1 voice, and was last updated 1 year, 9 months ago by babet.vandingenen. Viewing 1 post (of 1 total) Author Posts March 20, 2023 at 9:33 pm #4405 babet.vandingenenParticipant 1) Under rotation around the z-axis, the system must remain unchanged 2) The tensor must be diagonal with xx and yy component the same 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