Dual superconductor scenario of confinement: A systematic study of Gribov copy effects

Gunnar S. Bali; Vitaly Bornyakov; Michael Müller-Preussker; Klaus Schilling

doi:10.1103/PhysRevD.54.2863

← Back to search

Dual superconductor scenario of confinement: A systematic study of Gribov copy effects

Gunnar S. Bali, Vitaly Bornyakov, Michael Müller-Preussker, Klaus Schilling

DOI 10.1103/PhysRevD.54.2863 · Physical Review D

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

We perform a study of the effects from maximal Abelian gauge Gribov copies in the context of the dual superconductor scenario of confinement, on the basis of a novel approach for the estimation of systematic uncertainties from incomplete gauge fixing. We present numerical results, in SU(2) lattice gauge theory, using the overrelaxed simulated annealing gauge-fixing algorithm. We find Abelian and non-Abelian string tensions to differ significantly, their ratio being 0.92(4) at β=2.5115. An approximate factorization of the Abelian potential into monopole and photon contributions has been confirmed, the former giving rise to the Abelian string tension.