Home › Forums › density functional theory › the Born-Oppenheimer approximation › Born-Oppenheimer approximation This topic has 0 replies, 1 voice, and was last updated 3 months, 3 weeks ago by mhsabbir. Viewing 1 post (of 1 total) Author Posts August 26, 2024 at 3:01 pm #11085 mhsabbirParticipant I think in liquids, this approximation is not valid and also in gases. 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