Ground-State Properties of a Local Sine-Gordon Model with Two Frequencies
Chen Yu-Guang; Chen Hong; Zhang Yu-Mei; Chen Yu-Guang; Pohl Institute for Solid State Physics, Tongji University Shanghai 200092; Chen Hong; Pohl Institute for Solid State Physics, Tongji University Shanghai 200092; Zhang Yu-Mei; Pohl Institute for Solid State Physics, Tongji University Shanghai 200092
Журнал:
Chinese Physics Letters
Дата:
2002-05-01
Аннотация:
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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