用改进的格点哈密顿量计算2+1维U(1)规范场真空波函数  

Calculation of the Vacuum Wave Function in 2 + 1 Dimensional U(1) Gauge Theory by Using the Improved Lattice Hamiltonian

作　　者：江俊勤[1] 罗向前[2] 郭硕鸿[2] 刘金明[2] 

机构地区：[1]广东教育学院物理系,广州510303 [2]中山大学物理系,广州510275

出　　处：《高能物理与核物理》1999年第12期1152-1157,共6页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金

摘　　要：从格点Ｕ（Ｉ）规范场论中改进的哈密顿量出发，推导出截断本征方程．并对２十１维外１）规范场真空波函数进行数值计算，验证了理论的预言：对格点哈密顿量进行改进能使真空波函数的标度行为明显地改善．The truncated eigenvalue equation is derived from the improved U(1) latticegauge field Hamiltonian.The vacuum wave function in 2 + 1 dimensional U(1) modelis computed. The numerical results conform our expectation that the scaling behaviorof the vacuum wave function can be greasy improved by improving the latticeHamiltonian.

关 键 词：格点规范 哈密顿量 真空波函数 波函数 

分 类 号：O431[机械工程—光学工程]