论文标题
关于红外差异和全球颜色，n = 4 Yang-Mills理论
On the infrared divergence and global colour in N=4 Yang-Mills theory
论文作者
论文摘要
n = 4关于扁平四维Minkowski空间的Super Concormal Yang-Mills理论是一种脱键的仪表理论，在某种意义上，基本表示的字符串张力有色夸克会消失。实际上，位于某些半bps超级元素的静态基本表示夸克根本没有相互作用。一个有趣的问题询问此类夸克是否会带有定义明确的全球颜色电荷，当量规固定时，应具有内部对称性的状态。我们将提出一个简单的范式模型，该模型表明，这个问题的答案在于对红外差异的处理方式。
The N=4 superconformal Yang-Mills theory on flat four-dimensional Minkowski space is a de-confined gauge theory in the sense that the string tension for fundamental representation coloured quarks vanishes. In fact, static fundamental representation quarks which lie in certain half-BPS super-multiplets do not interact at all. An interesting question asks whether such quarks would carry a well-defined global colour charge which, when the gauge is fixed, should have the status of an internal symmetry. We shall present a simple paradigmatic model which suggests that the answer to this question lies in the way in which infrared divergences are dealt with.
