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量子场论是学习和研究近代物理的基础,也是理论物理专业研究生受现代理论物理训练的核心内容.不掌握必要的量子场论知识要想进一步理介现代理论物理的发展那是不可能的,不但粒子物理理论离不开量子场论,而且可以这么说,现代统计物理和宇宙学的许多方面都是量子场论方法的再发展. 创建于本世纪二十年代末,至四十年代末已日臻完善的量子场论尽管还有数学上的不完美性(如“重正化理论”),但其取得的极其辉煌的成就和它与实验十分精确的相符(如“电子反常磁矩”和“兰姆移动”)已使绝大多数物理学家确信它是一个成熟的理论.最近二十年来的发展已使量子场论这一理论更
Quantum field theory is the basis of learning and researching modern physics, and it is also the core content of theoretical physics graduate training by modern theoretical physics.It is impossible to grasp the necessary knowledge of quantum field theory to further refer to the development of modern theoretical physics, Not only can particle physics theory be related to quantum field theory, but also to say that many aspects of modern statistical physics and cosmology are redevelopment of quantum field theory methods, created in the late 1920s and up to the late 40s The ever-improving quantum field theory, despite its mathematical imperfections (such as the “renormalization theory”), achieves extremely brilliant accomplishments that are in perfect agreement with experimentation (such as the “electron anomaly moment” and “The Lamb Moves”) has convinced the vast majority of physicists that it is a mature theory and that developments in the last two decades have made Quantum Field Theory a