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The topological susceptibility in the large-N limit of SU(N) Yang-Mills theory
Published 20 Jul 2016 in hep-lat and hep-th | (1607.05939v1)
Abstract: We compute the topological susceptibility of the SU(N) Yang-Mills theory in the large-N limit with a percent level accuracy. This is achieved by measuring the gradient-flow definition of the susceptibility at three values of the lattice spacing for N=3,4,5,6. Thanks to this coverage of parameter space, we can extrapolate the results to the large-N and continuum limits with confidence. Open boundary conditions are instrumental to make simulations feasible on the finer lattices at the larger N.
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