Optimized post Gaussian approximation in the background field method

Details Optimized post Gaussian approximation in the background field method Optimized post Gaussian approximation in the background field method

2002-06-14

arxiv.org/abs/hep-th/0206121v3

Int.J.Mod.Phys. A19 (2004) 1589-1608

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, including 5 figures, RevTex. The section III revised

Scientific paper

10.1142/S0217751X04017884

We have extended the variational perturbative theory based on the back ground field method to include the optimized expansion of Okopinska and the post Gaussian effective potential of Stansu and Stevenson. This new method provides much simpler way to compute the correction terms to the Gausssian effective action (or potential). We have also renormalized the effective potential in 3+1 dimensions by introducing appropriate counter terms in the lagrangian

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