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“无限大疑难”的出现与理论研究中的困惑
引用本文:蔡永海.“无限大疑难”的出现与理论研究中的困惑[J].东北师大学报(自然科学版),1992(4):54-59.
作者姓名:蔡永海
作者单位:吉林师范学院
摘    要:

关 键 词:重整化  无限大疑难  量子电动力学

RENORMALIZATION IS A WAY TO DEAL WITH THE INFINITE PUZZLE
Cai Yonghai.RENORMALIZATION IS A WAY TO DEAL WITH THE INFINITE PUZZLE[J].Journal of Northeast Normal University (Natural Science Edition),1992(4):54-59.
Authors:Cai Yonghai
Institution:Cai Yonghai
Abstract:The appearance of infinite puzzle in quantum electrodynamics was noticed in 1930. when you try to set up an accurate quantum electrodynamies,you try to solve it by standard per- turbation methods,and you get to the lowest results that are good enough for the experimental ac- curacy,and when you get to the higher terms,you are always led to infinite magnitudes.This is a insignificance Conlusion and very fundamental difficulty which appeared in the theory of quan- tum electrodynamics. Many physicists try to deal with it,after passing a painful of tring to grapple with the infinite puzzle,one recognized that the Infinite Contributions were all connected with the infinite self-ener- gy and infinite vacuum polarication.From 1946 to 1949,schwinger,Feynman and Sin-itrio Tomonaga developed a reliable way to deal with the infinite puzzle.This is a method of renormal- ization.Renormalization took care of all in finites and provided an way to calculate with any de- sired accuracy for quantum electrodynamics.
Keywords:Renormalization  Inifinite puzzle  Self-energy  racuum polarication  Lamb shift
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