Conservation Laws in sine-Gordon Equation

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2003,（7）
• 页码范围: 1003-1005
• 页数: 3页
• 语种: 英文

摘要

There are two conservation quantities needed to derive conservation laws of sine-Gordon equation in a frame of laboratory reference. One of them could be derived easily with a standard process, but the other could not.After the gauge transformation e -iθσ2/2 is introduced, we simply obtain the other one without any questionable assumption.