Talk presented by Shouji Fujimoto

Parallel Session: Confinement III

Thursday July 1st, 15.10 - 15.30, Fermi Room

A perfect monopole action for SU(2) QCD

Abstract: A quantum perfect lattice action in four dimensions can be derived analytically as a renormalized trajectory when we perform a block spin transformation of monopole currents in the simple but non-trivial case of two-point monopole interactions. A perfect operator evaluating a static potential between electric charges is also derived explicitly. The static potential and the string tension is estimated analytically by the classical part alone and the continuum rotational invariance is restored completely.

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