摘要
本文详细研究了自旋1 Heisenberg XXZ 模型(Fateev-Zamolodchikov 模型)的潜藏定域规范不变性.我们发现,与自旋1/2的情形相类似,该模型允许Abel U(1)规范变换,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 quan-tum 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 explictly gauge dependent.
出处
《四川师范大学学报（自然科学版）》
CAS
CSCD
1992年第4期56-63,共8页
Journal of Sichuan Normal University（Natural Science）
基金
四川省教委基金资助课题
