The Donaldson-Witten Invariants in Pure QCD with Order and Disorder 't Hooft-like Operators
A. S. Cattaneo, P. Cotta-Ramusino, A. Gamba, M. Martellini
Abstract
We study the first-order formalism of pure four-dimensional SU(2) Yang--Mills theory with theta-term. We describe the Green functions associated to electric and magnetic flux operators à la 't~Hooft by means of gauge-invariant non-local operators. These Green functions are related to Witten's invariants of four-manifolds.
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