  A conceptual problem of the electric-field mediated polarization correlations
during a stochastic formation of polarization domain structure in
ferroelectrics is addressed by using an exactly solvable stochastic model of
polarization development in a uniaxial ferroelectric [Phys. Rev. B 107, 144109
(2023)]. A full set of time-dependent two-point correlation coefficients
between all random variables is derived analytically, evaluated numerically and
presented graphically in 3D. They are particularly required for the analysis of
nonlinear phenomena involving spatial dispersion like optical second harmonic
generation and scattering.
