Lattice Action Forms Stable under Renormalization
نویسنده
چکیده
We review the role of the generalized gaussian solution to the MigdalKadanoff renormalization group for SU(N) lattice gauge theories, and point out that it can be continued down to very low values of the inverse coupling 8. We thus explain the long distance stable line of actions observed in numerical investigations of SU(Z), and propose a simple SlJ(3) mixed action which should exhibit improved scaling behavior. *Work performed under the auspices of the United States Department of Energy. +On leave from the Department of Physics and Astronomy, Tel-Aviv University. Work supported by the D.O.E. under contract number DE-AC03-76SF00515.
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