Exact evolution equation for the effective potential
1993/02/01 by Christof Wetterich · 260 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Statistical Mechanics and Entropy #Theoretical and Computational Physics #cond-mat.quant-gas #cond-mat.str-el #gr-qc #hep-th #nucl-th
paper · pdf · doi:10.1016/0370-2693(93)90726-x
Original manuscript from 1992, 5 pages
openalex publication_date 1993/02/01 · openalex created_date 2016/06/24 · arxiv created 2017/10/16 · arxiv updated 2017/10/17 · openalex updated_date 2026/07/30
Abstract
We derive a new exact evolution equation for the scale dependence of an effective action. The corresponding equation for the effective potential permits a useful truncation. This allows one to deal with the infrared problems of theories with massless modes in less than four dimensions which are relevant for the high temperature phase transition in particle physics or the computation of critical exponents in statistical mechanics.
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