Abstract
We show that the Yang–Mills quantum field theory with momentum and spacetime cutoffs in four Euclidean dimensions is equivalent, term by term in an appropriately resummed perturbation theory, to a Fermionic theory with nonlocal interaction terms. When a further momentum cutoff is imposed, this Fermionic theory has a convergent perturbation expansion. To zeroth order in this perturbation expansion, the correlation function E(x,y) of generic components of pairs of connections is given by an explicit, finite-dimensional integral formula, which we conjecture will behave as
for \({|x-y|\gg 0}\), where d G is a positive integer depending on the gauge group G. In the case where G = SU(N), we conjecture that
so that the rate of decay of correlations increases as N → ∞.
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Supported in part by NSF grant DMS 04/05670.
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Weitsman, J. Fermionization, Convergent Perturbation Theory, and Correlations in the Yang–Mills Quantum Field Theory in Four Dimensions. Lett Math Phys 95, 275–296 (2011). https://doi.org/10.1007/s11005-011-0460-6
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DOI: https://doi.org/10.1007/s11005-011-0460-6