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arXiv · hep-lat/9602014

Self-consistent Calculation of Real Space Renormalization Group Flows and Effective Potentials

M. Griessl·G. Mack·G. Palma·Y. Xylander
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Abstract

We show how to compute real space renormalization group flows in lattice field theory by a self-consistent method. In each step, the integration over the fluctuation field (high frequency components of the field) is performed by a saddle point method. The saddle point depends on the block-spin. Higher powers of derivatives of the field are neglected in the actions, but no polynomial approximation in the field is made. The flow preserves a simple parameterization of the action. In this paper we treat scalar field theories as an example.

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M. Griessl, G. Mack, G. Palma, Y. Xylander. 1996-02-12. Self-consistent Calculation of Real Space Renormalization Group Flows and Effective Potentials. https://doi.org/10.1016/0550-3213(96)00340-9

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