We calculate the first two non-zero terms in the perturbative expansion of the additive and multiplicative renormalizations of the topological susceptibility, χ, in the 2D CPN−1 model, when a density of topological charge is defined as a local operator on the lattice. We compare our results with some direct determinations, by Monte Carlo techniques.
Topological charge on the lattice. The 2D CP(N-1) model
PAPA, Alessandro
1993-01-01
Abstract
We calculate the first two non-zero terms in the perturbative expansion of the additive and multiplicative renormalizations of the topological susceptibility, χ, in the 2D CPN−1 model, when a density of topological charge is defined as a local operator on the lattice. We compare our results with some direct determinations, by Monte Carlo techniques.File in questo prodotto:
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