What happens with EPR? homepage › Forums › what happens with EPR ? › What happens with EPR? This topic has 0 replies, 1 voice, and was last updated 5 years, 7 months ago by Vincent_VH. Viewing 1 post (of 1 total) Author Posts May 5, 2018 at 2:53 pm #1496 Score: 0 Vincent_VHParticipant The atom has level splitting due to the external magnetic field. EPR photons will excite the atom from one such level to another (with the same nuclear spin) and then will emit the photons again according to selection rules. 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