A non-perturbative approach to the Coleman- Weinberg mechanism in massless scalar QED

Details A non-perturbative approach to the Coleman- Weinberg mechanism in massless scalar QED A non-perturbative approach to the Coleman- Weinberg mechanism in massless scalar QED

1995-08-21

arxiv.org/abs/hep-th/9508101v1

Mod.Phys.Lett. A11 (1996) 749-754

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

We rederive non-perturbatively the Coleman-Weinberg expression for the effective potential for massless scalar QED. Our result is not restricted to small values of the coupling constants. This shows that the Coleman- Weinberg result can be established beyond the range of validity of perturbation theory. Also, we derive it in a manifestly renormalization group invariant way. It is shown that with the derivation given no Landau ghost singularity arises. The finite temperature case is discussed. Pacs number: 11.10.Ef,11.10.Gh.

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