Optimization of Renormalization Group Flow

Details Optimization of Renormalization Group Flow Optimization of Renormalization Group Flow

1999-05-27

arxiv.org/abs/hep-th/9905206v1

Nucl.Phys. B567 (2000) 493-514

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, 7 figures

Scientific paper

10.1016/S0550-3213(99)00496-4

Renormalization group flow equations for scalar lambda Phi^4 are generated using three classes of smooth smearing functions. Numerical results for the critical exponent nu in three dimensions are calculated by means of a truncated series expansion of the blocked potential. We demonstrate how the convergence of nu as a function of the order of truncation can be improved through a fine tuning of the smoothness of the smearing functions.

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