Monopole action and condensation in SU(2) QCD
Abstract
An effective monopole action for various extended monopoles is derived from vacuum configurations after abelian projection in the maximally abelian gauge in SU(2) QCD. The action appears to be independent of the lattice volume. Moreover it seems to depend only on the physical lattice spacing of the renormalized lattice, not on β. Entropy dominance over energy of monopole loops is seen on the renormalized lattice with the spacing b>bc 5.2×10-3 L-1. This suggests that monopole condensation always (for all β) occurs in the infinite-volume limit of lattice QCD.
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