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Testing fixed points in the 2D O(3) non-linear sigma model

B. Alles·G. Cella·M. Dilaver·Y. Gunduc
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Abstract

Using high statistic numerical results we investigate the properties of the O(3) non-linear 2D sigma-model. Our main concern is the detection of an hypothetical Kosterlitz-Thouless-like (KT) phase transition which would contradict the asymptotic freedom scenario. Our results do not support such a KT-like phase transition.

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B. Alles, G. Cella, M. Dilaver, Y. Gunduc. 1998-10-20. Testing fixed points in the 2D O(3) non-linear sigma model. https://doi.org/10.1103/physrevd.59.067703

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