Finite quantum corrections to the tribimaximal neutrino mixing

We calculate finite quantum corrections to the tribimaximal neutrino mixing pattern VTB in three generic classes of neutrino mass models. We show that three flavor mixing angles can all depart from their tree-level results described by VTB, among which θ12 is most sensitive to such quantum effects, and the Dirac CP-violating phase can radiatively arise from two Majorana CP-violating phases. This theoretical scheme offers a new way to understand why θ13 is naturally small and how three CP-violating phases are presumably correlated.