Home › Forums › density functional theory › the Born-Oppenheimer approximation › BO approximation This topic has 0 replies, 1 voice, and was last updated 2 years, 2 months ago by Jonas De Rijck. Viewing 1 post (of 1 total) Author Posts October 4, 2022 at 8:00 pm #6887 Jonas De RijckParticipant In situations where the nuclei have sufficient speed, i.e. at very high T, the BO approximation will not be valid. 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