Ground-State Properties of a Local Sine-Gordon Model with Two Frequencies

• 来源期刊: 中国物理快报（英文版）
• 学科: 物理学
• 年，卷（期）: 2002,（5）
• 页码范围: 727-729
• 页数: 3页
• 分类号: O4
• 语种: 英文

摘要

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.