Dvornichenko A. Ordering processes in stochastic systems with internal fluctuations

It was found that in spatially extended stochastic systems with a field dependent kinetic coefficient nonequilibrium phase transitions are stipulated by the modality change of the stationary distribution caused by internal noise action. Studying phase separation processes it was found that at early stages of the separation this kind of noise stabilizes a homogeneous state. It was shown that the noise promotes slow dynamics of the domain size growth at late stages of the decomposition. It was shown that the following spatial patterns are: nucleation, stripes with defects. It was shown that such the structures are formed in the vicinity of homogeneous states and exist inside a fixed noise intensity interval.