格点Z_3规范场-Higgs场耦合体系的相结构

Phase Structure of Z_3 Lattice Gauge Theory Coupled With the Higgs Field

用Migdal－Kadanoff重整化群方法研究了四维时空中的格点Z3规范场与Z3-Higgs标量场耦合体系，得到了该体系的耦合常数递推关系和相图，结果表明Z3耦合体系的耦合常数递推关系中的项与Z2、Z4耦合体系的耦合常数递推关系中的项不存在—一对应关系．

in the scheme of Migdal-Kadanoff renormalization group transformation, the Phase structure of Z_3 lattice gauge theory coupled with the Higgs field in four dimension space is studied.The phase diagram shows that among the three of the Higgs egion, confined region and free charge region,the first two regions are smoothly connected with each other. Received 16 March 1998