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Ground-State Properties of a Local Sine-Gordon Model with Two Frequencies |
| CHEN Yu-Guang;CHEN Hong;ZHANG Yu-Mei |
| Pohl Institute for Solid State Physics, Tongji Univercity Shanghai 200092 |
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| Cite this article: |
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CHEN Yu-Guang, CHEN Hong, ZHANG Yu-Mei 2002 Chin. Phys. Lett. 19 727-729 |
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Abstract The local sine-Gordon model with two frequencies is studied by a variational method. The renormalization mass and classical field path are calculated. We find an Ising-like phase transition, which is analogous in the global sine-Gordon model with two frequencies. A full phase diagram is given.
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| Keywords:
71.10.Hf
11.10.Lm
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Published: 01 May 2002
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| PACS: |
71.10.Hf
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(Non-Fermi-liquid ground states, electron phase diagrams and phase transitions in model systems)
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11.10.Lm
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(Nonlinear or nonlocal theories and models)
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