RENORMALISATION GROUP AIDED FINITE TEMPERATURE REDUCTION OF QUANTUM FIELD THEORIES
Abstract
Dimensional reduction of finite temperature quantum field theories can be improved with help of continous renormalisation group steps. The method is applied to the integration of the lowest non-static (n= 1) modes of the finite temperature 4-theory. A second, physically important application is the integration of the Debye-screened A0(x) static scalar potential in the gauged SU(2) Higgs model.
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