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The Ising Transition in the double-frequency sine-Gordon model

Fei Ye·Guo-Hui Ding·Bo-Wei Xu
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Abstract

In the present paper we utilize the renormalization group(RG) technique to analyse the Ising critical behavior in the double frequency sine-Gordon model. The one-loop RG equations obtained show unambiguously that there exist two Ising critical points besides the trivial Gaussian fixed point. The topology of the RG flows is obtained as well.

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Fei Ye, Guo-Hui Ding, Bo-Wei Xu. 2001-04-18. The Ising Transition in the double-frequency sine-Gordon model. https://arxiv.org/abs/cond-mat/0104321

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