Home › Forums › density functional theory › the Born-Oppenheimer approximation › Quantum nuclei This topic has 0 replies, 1 voice, and was last updated 1 year, 1 month ago by davide.a. Viewing 1 post (of 1 total) Author Posts October 30, 2023 at 11:52 am #9768 davide.aParticipant If our nuclei move themselves in a quantum way, we must include them in the wavefunction. For example at low temperatures Helium nuclei behave as a quantum liquid. 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