Tree-level renormalization
classification
✦ hep-th
keywords
renormalizationactionapproximationcomputedcorrelationdescribedexactexpansion
read the original abstract
It is shown in the framework of the N-component scalar model that the saddle point structure may generate non-trivial renormalization group flow. The spinodal phase separation can be described in this manner and a flat action is found as an exact result which is valid up to any order of the loop expansion. The correlation function is computed in a mean-field approximation.
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