Direct Calculation of the Critical Effective Potential

Details Direct Calculation of the Critical Effective Potential Direct Calculation of the Critical Effective Potential

2003-03-31

arxiv.org/abs/hep-th/0303261v2

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, 3 figures

Scientific paper

The critical effective potential is the nonperturbative part of the effective action at a phase transition. It equals the scale invariant effective average potential and can be calculated from the renormalization group flow of the effective average action. In some cases this requires only the solution of an ordinary differential equation without actually simulating the renormalization group flow. Here the Ising model is examined beyond leading order and with full field dependent effective potential.

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