Restoration of Symmetry by Interactions and Nonreliability of the Perturbative Renormalization Group Approach

P. Azaria; P. Lecheminant; A. M. Tsvelik

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Restoration of Symmetry by Interactions and Nonreliability of the Perturbative Renormalization Group Approach

P. Azaria·P. Lecheminant·A. M. Tsvelik

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Abstract

We discuss examples of (1+1)-dimensional models where the perturbative renormalization group (RG) indicates a tendency to restore the symmetry in the strong coupling limit. We show that such restoration does occur sometimes, but the pertubative RG cannot be reliably used to detect it.

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P. Azaria, P. Lecheminant, A. M. Tsvelik. 1998-06-08. Restoration of Symmetry by Interactions and Nonreliability of the Perturbative Renormalization Group Approach. https://arxiv.org/abs/cond-mat/9806099

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