李子平. 约束系的泛函积分和W—T恒等式[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 1984, (3).DOI:
约束系的泛函积分和W—T恒等式
摘要
从约束场系统的泛函积分(路积分)形式表述出发
导出约束场系统的运动方程
考虑约束场系统的变换性质
导出了约束场系统普遍的 Ward—Takahashi(W—T)恒等式
给出了它在具体场论模型中的应用
着重讨论了乘子规范不变的重介子场的 Ward—Takahashi 恒等式
给出了它的裸零质量极限和树图近似.
Abstract
We start from the functional integral(path—integral)formulation of cons- trained field systems to derive the motion equations of this constrained systems. Consider the transformation properties of constrained systems
We derive general Ward—Takahashi identities and give some application to several models of field theory.The Ward—Takahashi identities for massive vector meson field which is multiplier gauge invariant was discussed detail
we have given the limit as bare mass vanishes and the tree approximation.