A meron cluster solution for the sign problem of the two-dimensional O(3) model

The two-dimensional O(3) model at a vacuum angle theta=pi is investigated. This model has a severe sign problem. By a Wolff cluster algorithm an integer or half-integer topological charge is assigned to each cluster. The meron clusters (clusters with half-integer topological charge) are used to cons...

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Veröffentlicht in:	arXiv.org 2002-07
1. Verfasser:	Brechtefeld, Frank
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Clusters Computer simulation Configurations Correlation Ice Mathematical models Topology Two dimensional models
Online-Zugang:	Volltext
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