Home › Forums › Hyperfine course › a nucleus with a general shape ? › complications without multipole expansion This topic has 0 replies, 1 voice, and was last updated 10 months ago by ellavandalfsen. Viewing 1 post (of 1 total) Author Posts February 21, 2024 at 12:56 pm #5052 ellavandalfsenParticipant If we were to not use a multipole expansion, the interaction term would be very hard to calculate. The multipole expansion ensures that we can systems of the nucleus and the electrons, which makes the calculation easier. 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