A Proposal of a Renormalization Group Transformation for Lattice Field Theories

Details A Proposal of a Renormalization Group Transformation for Lattice Field Theories A Proposal of a Renormalization Group Transformation for Lattice Field Theories

1994-06-16

arxiv.org/abs/hep-lat/9406011v1

Phys.Rev.D50:5935-5943,1994

Physics

High Energy Physics

High Energy Physics - Lattice

26 pages, uuencoded compressed postscript single file, 8 figures included

Scientific paper

10.1103/PhysRevD.50.5935

We propose a new Real Space Renormalization Group transformation useful for Monte Carlo calculations in theories with global or local symmetries. From relaxation arguments we define the block-spin transformation with two tunable free parameters, adapted to the system's action. Varying them it is possible to place the fixed point very close to the simulation point. We show how the method works in a simple model with global symmetry: the three dimensional XY model.

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