Home › Forums › density functional theory › correlation › Correlation This topic has 0 replies, 1 voice, and was last updated 2 years, 2 months ago by Arthur Adriaens. Viewing 1 post (of 1 total) Author Posts October 13, 2022 at 10:24 am #7163 Arthur AdriaensParticipant Because if you’d define it the classical way you would end up with the difference between the hartree and exact solution, i.e exchange is non-existent in the classical system. 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