Lectures on Theoretical Physics: Part One 理论物理学讲座:第一部分
The gauge theories play the fundamental role in theoretical physics. All four fundamental interactions in nature, gravitational, electromagnetic, weak, and strong interactions, are described by the gauge interaction. They are based on the gauge principle, which is essentially a part of the locality principle that tells that nature allows us the freedom to describe the physics locally in a different but consistent way. This is like different people at different places use different languages but they express the same feeling and same meaning in such a way that we can translate one language to another. This is the fundamental principle of equality and freedom, the principle of democracy of nature.
Yongmin Cho 教授(韩国首尔国立大学)
理工楼1201