么正群U(1)与电磁场的存在

Unitary Group U(1) with the Presence of Electromagnetic Fields

通过对狄拉克方程的研究分析表明,一旦系统具有U(1)群的规范对称性,那就必然要求系统的粒子之间存在电磁相互作用.这里的规范相互作用必须通过规范粒子———光子来传递.从物理概念到数学结构阐述U(1)规范不变性的重要性,揭示了量子规范场理论的重要作用.

The study of Dirac equation has shown that if the system has U（1） group standardized symmetry, electro-magnetic interactions between the particles of the system will inevitably be shown up. Standardized interaction must be transmitted by standardized particles--photons. From the perspectives of physical concept and mathematical structure, the standardized invariance of U （ 1 ） is elaborated to show the importance of the theory of the quantum standardized field.