A model of CP Violation from Extra Dimension
  We construct a realistic model of CP violation in which CP is broken in the process of dimensional reduction and orbifold compactification from a five dimensional theories with $SU(3)\times SU(3) \times SU(3)$ gauge symmetry. CP violation is a result of the Hosotani type gauge configuration in the higher dimension. 
Darwin Chang, Chian-Shu Chen, Chung-Hsien Chou, Hisaki Hatanaka