RENORMALIZATION OF THE CLOSED TIME PATH GREEN'S FUNCTIONS IN NON-EQULIBRIUM STATISTICAL FIELD THEORY
- Received Date: 1979-01-24
- Accepted Date: 1900-01-01
- Available Online: 1979-06-05
Abstract: The problem of renormalization of the closed time path Green's function in non-equlibrium statistical field theory is studied.Under some reasonable assumptionson the high energy behavior of the initial correlation functions,it is found that thesame counter terms,which eliminate the ultraviolet divergences in the usual fieldtheory,can also make the closed time path Green's functions free of ultraviolet di-vergences.The renormalization group equation satisfied by the closed time pathvertex functions is obtained and the Callan-Symanzik coefficient functions are shownto be the same as in the usual field theory.