Home › Forums › Hyperfine course › electric quadrupole interaction › from toy model to quantum › Quadrupole term This topic has 0 replies, 1 voice, and was last updated 1 month ago by Victor Navarro de la Torre. Viewing 1 post (of 1 total) Author Posts March 18, 2025 at 1:57 pm #6492 Victor Navarro de la TorreParticipant As the radius of the nucleus becomes smaller and smaller, the quadrupole term approaches the exact solution. As long as the radius is finite the energy will not flatten out like in the monopole term. 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