Tensor-network simulation of the strong-coupling 𝑼(𝑵) model
May 16, 2022
We apply tensor network methods to study the strong-coupling 𝑈(𝑁) model in its dimer formulation. In three and four dimensions, we investigate the chiral condensate as a function of the quark mass and the degree of the symmetry group, and find good agreement with Monte Carlo simulations. Particularly interesting is the study of chiral symmetry breaking as a function of the mass and the volume, which clearly shows that this symmetry is spontaneously broken in the limit of infinite volume and zero mass.
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