Spontaneous breakdown of CP in left right symmetric models

We show that it is possible to obtain spontaneous CP violation in the minimal SU(2)_L × SU(2)_R × U(1)_{B -L}, i.e. in a left right symmetric model containing a bidoublet and two triplets in the scalar sector. For this to be a natural scenario, the non-diagonal quartic couplings between the two scalar triplets and the bidoublet play a fundamental role. We analyze the corresponding Higgs spectrum, the suppression of FCNC’s and the manifestation of the spontaneous CP phase in the electric dipole moment of the electron.