Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1997-11-17
Phys.Rev. D58 (1998) 054502
Physics
High Energy Physics
High Energy Physics - Lattice
23 pages, LaTeX, 4 eps figures, epsfig.sty; some comments added
Scientific paper
10.1103/PhysRevD.58.054502
We construct instanton-like classical solutions of the fixed point action of a suitable renormalization group transformation for the SU(3) lattice gauge theory. The problem of the non-existence of one-instantons on a lattice with periodic boundary conditions is circumvented by working on open lattices. We consider instanton solutions for values of the size (0.6-1.9 in lattice units) which are relevant when studying the SU(3) topology on coarse lattices using fixed point actions. We show how these instanton configurations on open lattices can be taken into account when determining a few-couplings parametrization of the fixed point action.
Farchioni Federico
Papa Alessandro
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