The Origin of CP Violation
  Quantum field theory has been established on symmetries, but their fundamentality could be limited as practical calculations of physical observations are not based on interacting Lagrangian. The requirement of Lorentz invariance on vacuum expectation values is contradicted by parity violation with massive fermions and Lorentz violation of the approximation in the standard model is proved. After alternative interpretation of quark mixing and problems of CP violation are addressed, the composite properties of neural meson will be suggested as origin of CP violation with possible experimental tests. In conclusion, fundamental symmetry violation is still inconclusive due to the limited theoretical assumptions and physical observations. 
J.C. Yoon