A proposal of a Renormalization Group transformation
L. A. Fernandez, A. Munoz Sudupe, J. J. Ruiz-Lorenzo, A. Tarancon
Abstract
We propose a family of renormalization group transformations characterized by free parameters that may be tuned in order to reduce the truncation effects. As a check we test them in the three dimensional XY model. The Schwinger--Dyson equations are used to study the renormalization group flow.
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