Global Aspects of Quantizing Yang-Mills Theory

Details Global Aspects of Quantizing Yang-Mills Theory Global Aspects of Quantizing Yang-Mills Theory

1999-09-10

arxiv.org/abs/hep-th/9909066v1

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, Latex, Talk given by Helmuth H\"uffel at the Central European Triangle Meeting on Particle Physics, Zagreb, Croatia,

Scientific paper

We review recent results on the derivation of a global path integral density for Yang-Mills theory. Based on a generalization of the stochastic quantization scheme and its geometrical interpretation we first recall how locally a modified Faddeev-Popov path integral density for the quantization of Yang-Mills theory can be derived, the modification consisting in the presence of specific finite contributions of the pure gauge degrees of freedom. Due to the Gribov problem the gauge fixing can be defined only locally and the whole space of gauge potentials has to be partitioned into patches. We discuss a global extension of the path integral by summing over all patches, which can be proven to be manifestly independent of the specific local choices of patches and gauge fixing conditions, respectively. In addition to the formulation on the whole space of gauge potentials we discuss the corresponding path integral on the gauge orbit space.

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