摘要
本文从对称变换保持系统的动力学方程(以及对易关系)不变出发,推导出量子场论中的连续对称变换所产生的守恒律,而不借助于拉格朗日体制的Noether定理。
We shall show that continuous symmetery transformation in quantum field theory, which leave the equation of motion invariant, will generate conservation laws without use Noether theorem of Lagrangian formalism.
关键词
量子
场论
对称变换
守恒律
Quantum ficld theory
Symmetery transformation
Gauge invariance
Space-time
Displacements
Rotation
Generating element
Conservation laws
