Home › Forums › Hyperfine course › ERP › EPR on free atoms (2) › First task This topic has 0 replies, 1 voice, and was last updated 1 week, 2 days ago by Yaxi Li. Viewing 1 post (of 1 total) Author Posts May 5, 2025 at 9:27 am #6632 Yaxi LiParticipant There would be a transition between the hyperfine levels. 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