Improving the improved action

Details Improving the improved action Improving the improved action

2007-02-28

arxiv.org/abs/hep-lat/0702027v1

Phys.Rev.Lett.98:181601,2007

Physics

High Energy Physics

High Energy Physics - Lattice

8 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.98.181601

We investigate the construction of improved actions by the Monte Carlo Renormalization Group method in the context of SU(2) gauge theory utilizing different decimation procedures and effective actions. We demonstrate that the basic self-consistency requirement for correct application of MCRG, i.e. that the decimated configurations are equilibrium configurations of the adopted form of the effective action, can only be achieved by careful fine-tuning of the choice of decimation prescription and/or action.

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