# Topological susceptibility and string tension in CP(N-1) models

Campostrini, Massimo and Rossi, Paolo and Vicari, Ettore (1993) Topological susceptibility and string tension in CP(N-1) models. Nuclear Physics B - Proceedings Supplements, 30 . pp. 830-833. ISSN 1873-3832

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## Abstract

We investigate the features of ${\rm CP}^{N-1}$ models concerning confinement and topology. In order to study the approach to the large-$N$ asymptotic regime, we determine the topological susceptibility and the string tension for a wide range of values of $N$, in particular $N=4,10,21,41$. Quantitative agreement with the large-$N$ predictions is found for the ${\rm CP}^{20}$ and the ${\rm CP}^{40}$ models. Problems related to the measure of the topological susceptibility and the string tension on the lattice are discussed.

Item Type: Article Imported from arXiv Area02 - Scienze fisiche > FIS/02 - Fisica teorica, modelli e metodi matematici Dipartimenti (from 2013) > DIPARTIMENTO DI FISICA dott.ssa Sandra Faita 11 Feb 2014 15:13 11 Feb 2014 15:13 http://eprints.adm.unipi.it/id/eprint/1895

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