Critical slowing down of topological modes

Debbio, Luigi Del and Manca, Gian Mario and Vicari, Ettore (2004) Critical slowing down of topological modes. Physics letters. B , 594 (3-4). pp. 315-323. ISSN 1873-2445

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Abstract

We investigate the critical slowing down of the topological modes using local updating algorithms in lattice 2-d CP^(N-1) models. We show that the topological modes experience a critical slowing down that is much more severe than the one of the quasi-Gaussian modes relevant to the magnetic susceptibility, which is characterized by $\tau_{\rm mag} \sim \xi^z$ with $z\approx 2$. We argue that this may be a general feature of Monte Carlo simulations of lattice theories with non-trivial topological properties, such as QCD, as also suggested by recent Monte Carlo simulations of 4-d SU(N) lattice gauge theories.

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 15:33 11 Feb 2014 15:33 http://eprints.adm.unipi.it/id/eprint/1886

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