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`Very high order perturbation theory: Lattice Wilson loops'

Abstract: Two main approaches to understanding QCD are perturbation
theory, which produces series in the QCD coupling constant; and
lattice QCD, which is completely non-perturbative. In this talk we
look at a technique for doing perturbation theory on the lattice. We
can generate long series (up to 20 loops) for Wilson loops (quantities
connected with the quark-antiquark potential). This allows us to
investigate some interesting questions about perturbation theory. Can
we see any signs that the series does not converge? 
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