In the microscopic view, the dynamical state of each system changes when two systems are brought into thermal contact, and they reach equilibirium when the dynamical state of both systems become identical.
Masashi SakuraiF | E-mail : m.sakurai@cmt.phys.kyushu-u.ac.jp Web page : http://www.cmt.phys.kyushu-u.ac.jp/~M.Sakurai/ |