Home › Forums › Hyperfine course › a nucleus with a general shape ? › Complications of multipole expansion This topic has 0 replies, 1 voice, and was last updated 7 months, 1 week ago by Louis De Smedt. Viewing 1 post (of 1 total) Author Posts February 27, 2024 at 12:04 am #5140 Louis De SmedtParticipant If you don’t use multipole expansion first than the calculations, for he interactions, will become very complicated when using the pertubation theory on the system. 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