http://blog.czarja.top/2021/09/11/Mean-Field-Variational-approach.html An interesting variational principle, first promoted by Bogoliubov. Might be helpful in understanding the origin of Mean Field Theory.
http://blog.czarja.top/2021/09/11/Mean-Field-Variational-approach.html
An interesting variational principle, first promoted by Bogoliubov. Might be helpful in understanding the origin of Mean Field Theory.