Abstract
We obtain a sequence of alternative representations for the partition function of pure SU(N) or U(N) lattice gauge theory with the Wilson plaquette action, using the method of Hubbard-Stratonovich transformations. In particular, we are able to integrate out all the link variables exactly, and recast the partition function of lattice gauge theory as a Gaussian integral over auxiliary fields.
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Vairinhos, H., de Forcrand, P. Lattice gauge theory without link variables. J. High Energ. Phys. 2014, 38 (2014). https://doi.org/10.1007/JHEP12(2014)038
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DOI: https://doi.org/10.1007/JHEP12(2014)038