Linear Instability Mechanisms of Noise-Induced Phase Transitions
We review the role of linear instabilities on phase transition processes induced by external spatiotemporal noise. In particular, we present a detailed linear stability analysis of a standard Ginzburg-Landau model with multiplicative noise. The results show the well-known constructive role of fluctuations in this case. The analysis is performed for both non-conserved and conserved dynamics, corresponding to order-disorder and phase separation transitions, respectively.
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