On the Configuration Space of Gauge Theorie

Details On the Configuration Space of Gauge Theorie On the Configuration Space of Gauge Theorie

1994-04-11

arxiv.org/abs/hep-th/9404059v1

Nucl.Phys. B426 (1994) 107-128

Physics

High Energy Physics

High Energy Physics - Theory

22 pages [A4] in LaTeX, HD-THEP-94-11, NIKHEF-H/94-11

Scientific paper

10.1016/0550-3213(94)90128-7

We investigate the structure of the configuration space of gauge theories and its description in terms of the set of absolute minima of certain Morse functions on the gauge orbits. The set of absolute minima that is obtained when the background connection is a pure gauge is shown to be isomorphic to the orbit space of the pointed gauge group. We also show that the stratum of irreducible orbits is geodesically convex, i.e. there are no geometrical obstructions to the classical motion within the main stratum. An explicit description of the singularities of the configuration space of SU(2) theories on a topologically simple space-time and on the lattice is obtained; in the continuum case we find that the singularities are conical and that the singular stratum is isomorphic to a Z_2 orbifold of the configuration space of electrodynamics.

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