Coarse graining for the phase-field model of fast phase transitions.
Fast phase transitions under lack of local thermalization between successive elementary steps of the physical process are treated analytically. Non-Markovian master equations are derived for fast processes, which do not have enough time to reach energy or momentum thermalization during rapid phase change or freezing of a highly nonequilibrium system. These master equations provide a further physical basis for evolution and transport equations of the phase-field model used previously in the analyses of fast phase transitions.
Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Catalonia, Spain.
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Galenko