摘要
本文对具有严格基态解和正确经典连续极限的格点规范哈密顿量,采用变分法,计算了2+1维SU(2)规范群的胶球质量,得到在1.3≤1/g^2≤7范围内,标度行为是am=2.28g^2,这与弱耦合展开及另一没有正确连续极限的哈密顿量的结果一致.
A variational calculation of the mass gap in 2+1 dimensional SU(2) lattice gauge theory by using a Hamiltonian which possesses exact ground state and correct continuum limit is made. In the range 1.3<1/g^2≤7, a good scaling behaviour am=2.28g^2 is obtained, which is in agreement with weak-coupling perturbation theory and the results obtained by another Hamiltonian which does not possess correct continuum limit.
出处
《高能物理与核物理》
CSCD
北大核心
1989年第1期83-86,共4页
High Energy Physics and Nuclear Physics
基金
国家教委科学基金
中山大学高等学术中心基金会资助
