"Branes" in lattice SU(2) gluodynamics

Physics – High Energy Physics – High Energy Physics - Phenomenology

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Talk given at 2002 International Workshop on Strong Coupling Gauge Theories and Effective Theories (SCGT 02) Nagoya Japan 10-1

Scientific paper

We review lattice evidence for existence of thin vortices in the vacuum state of SU(2) gluodynamics. On the average, the non-Abelian action density per unit area is ultraviolet divergent as a^{-2} where a is the lattice spacing. At small scales, the surface looks very crumpled so that the corresponding entropy factor appears also ultraviolet divergent. The total area, however, scales in physical units. The surface is populated by monopoles which represent a tachyonic mode. The smallest value of $a$ tested is about (3 GeV)^{-1}.

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