Extended QCD versus Skyrme-Faddeev theory
Extended QCD versus Skyrme-Faddeev theory
We discuss the physical impact of the ``Cho decomposition'' (or the ``Cho-Faddeev-Niemi-Shabanov decomposition'') of the non-Abelian gauge potential on QCD. We show how the decomposition makes a subtle but important modification on the non-Abelian dynamics, and present three physically equivalent quantization schemes of QCD which are consistent with the decomposition. …