Home › Forums › Hyperfine course › electric quadrupole interaction › quadrupole operator › my answer This topic has 0 replies, 1 voice, and was last updated 9 months, 1 week ago by Niels Houben. Viewing 1 post (of 1 total) Author Posts March 16, 2024 at 12:56 pm #5507 Niels HoubenParticipant 1) From the equation, you will know if it has axial symmetry because the matrix is diagonal. 2) From a visual inspection of the picture, the dumbbell is always symmetric in the xy-plane, granting it axial symmetry. 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