QED中相互作用场的量子化  

On the Quantization of Interacting Fields in QED

作　　者：王仁川[1] 朱栋培[1] 

机构地区：[1]中国科学技术大学基础物理中心,中国科学技术大学近代物理系

出　　处：《高能物理与核物理》1994年第11期1012-1019,共8页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金;科学院LWTZ-1298资助.

摘　　要：提出在ＱＥＤ中利用自由场的量子化条件和场方程，可以全面解决独立和非独立的相互作用场中￠（ｘ），Ａμ（ｘ）的量子化问题．证明了：（１）当外规范场（ｘ）≠０时，￠（ｘ）与Ａμ（ｘ）相互独立，它与常规的场量子化方法一致．（２）当（ｘ）＝０时，￠（ｘ）与Ａμ（ｘ）不再相互独立，常规的量子化方法不再适用，而本文提出的方法继续有效．并以１＋１维ＱＥＤ作为实例．We propose a new quantization scheme with which and the equation of motion the quantization problem of both independent and dependent interacting fields in QED can be solved simultaneously.When the external gauge field Aμ(s)≠0(i.e.the Fermion field ￠(x) and the electromagnetic field Aμ(x) are independent) our scheme gives the same result as the usual quantization approach.When the external gauge field is absent the usual quantization conditions are failed since it is not compatible with the equation of motion,meanwhile our scheme is still valid.These results are demonstrated with solvable QED in 1+1 dimension.

关 键 词：非独立 相互作用场 量子化 量子电动力学 规范场 

分 类 号：O413.2[理学—理论物理]