梯形自旋链的一种规范场论的形式

许伯威; 叶飞; 丁国辉

doi:10.3321/j.issn:1000-3290.2001.02.022

物理学报

梯形自旋链的一种规范场论的形式

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许伯威, 叶飞, 丁国辉. 2001: 梯形自旋链的一种规范场论的形式, 物理学报, 50(2): 310-312. doi: 10.3321/j.issn:1000-3290.2001.02.022

引用本文:

许伯威, 叶飞, 丁国辉. 2001: 梯形自旋链的一种规范场论的形式, 物理学报, 50(2): 310-312. doi: 10.3321/j.issn:1000-3290.2001.02.022

XU Bo-Wei, YE FEI, DING Guo-Hui. 2001: ONE KIND OF THE GAUGE FIELD THEORY OF SPIN LADDERS, Acta Physica Sinica, 50(2): 310-312. doi: 10.3321/j.issn:1000-3290.2001.02.022

Citation:

XU Bo-Wei, YE FEI, DING Guo-Hui. 2001: ONE KIND OF THE GAUGE FIELD THEORY OF SPIN LADDERS, Acta Physica Sinica, 50(2): 310-312. doi: 10.3321/j.issn:1000-3290.2001.02.022

梯形自旋链的一种规范场论的形式

上海交通大学物理系,

ONE KIND OF THE GAUGE FIELD THEORY OF SPIN LADDERS

摘要: 考虑无质量费米场和规范场的Pauli相互作用项的系统，在这一理论中耦合常数为无量纲量. 该模型等价于自旋1/2反铁磁XXZ量子链. 如在模型中引入费米场的味自由度，则可定性描述二条自旋链的梯形结构系统. 在这一系统中不再存在无能隙激发.
- 梯形结构 /
- 规范场 /
- 自旋链
Abstract: We consider a massless fermion interacting with the gauge field by Pauli interaction in which the coupling constant is dimensionless. The model is equivalent to the s=1/2 antiferromagnetic XXZ spin chain. The two flavours massless fermion of such model can describe the two-leg spin ladder system qualitatively, and there is no gapless exitation in such a system.