Self-consistent model of blue phase III to isotropic phase transitio

In previous publications [Phys. Rev. Lett. 81, 1457 (1998); Phys. Rev. E 61, 2759 (2000)], a simplified model with the scalar order parameter and without the cubic term in the Hamiltonian has been used to account for the phase transition between the two isotropic chiral liquids. The present approach is a step towards full analysis of this transition using de Gennes tensor order parameter and the higher-order self-consistent ap- proach. The importance of the cubic term for a proper description of this phase transition is indicated.