Hamiltonian Formulations of Yang-Mills Quantum Theory and the Gribov Problem

Details Hamiltonian Formulations of Yang-Mills Quantum Theory and the Gribov Problem Hamiltonian Formulations of Yang-Mills Quantum Theory and the Gribov Problem

1996-04-03

arxiv.org/abs/hep-th/9604018v1

Physics

High Energy Physics

High Energy Physics - Theory

29 pages, no figures

Scientific paper

We review the status of quantising (non-abelian) gauge theories using different versions of a Hamiltonian formulation corresponding to Dirac's instant and front form of dynamics, respectively. In order to control infrared divergences we work in a finite spatial volume, chosing a torus geometry for convenience. We focus on the determination of the physical configuration space of gauge invariant variables via gauge fixing. This naturally leads us to the issue of the Gribov problem. We discuss it for different gauge choices, in particular finite volume modifications of the axial gauge. Conventional and light-front quantisation are compared and the differences pointed out.

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