login

Exact evolution equation for the effective potential

Physics Letters BPublished 1 February 1993Open access
Christof Wetterich
Citations2,033
View PDF

Abstract

We derive a new exact evolution equation for the scale dependence of an\neffective action. The corresponding equation for the effective potential\npermits a useful truncation. This allows one to deal with the infrared problems\nof theories with massless modes in less than four dimensions which are relevant\nfor the high temperature phase transition in particle physics or the\ncomputation of critical exponents in statistical mechanics.\n

Keywords

Physics and Astronomy