摘要
详细研究了自旋为1的Heisenberg XXZ模型(Fateev-Zamolodchikov模型)的潜藏定域规范不变性。发现与自旋为1/2的情形相类似,该模型允许AbelU(1)规范交换,且其能谱在规范变换下保持不变,而其本征矢却与规范变换明显相关。
Hidden local gauge invariance in Fateev-Zamolodchikov quantum spin chain is studied in detail in the framework of the quantum inverse scattering method (QISM). It is found that, similar to the case of spin 1/2, this model admits an Abelian U(1) gauge transformation and that the energy spectrum is gauge invariant whereas the eigenvectors are explicitly gauge dependent.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1993年第2期331-339,共9页
Acta Physica Sinica
基金
四川省教育委员会基金
