Thermal conductivity in dynamics of first-order phase transition

Details Thermal conductivity in dynamics of first-order phase transition Thermal conductivity in dynamics of first-order phase transition

2010-07-09

arxiv.org/abs/1007.1538v1

Physics

Nuclear Physics

Nuclear Theory

21 pages, 2 figures; submitted to Nuclear Physics A on 26 Feb 2010

Scientific paper

Effects of thermal conductivity on the dynamics of first-order phase transitions are studied. Important consequences of a difference of the isothermal and adiabatic spinodal regions are discussed. We demonstrate that in hydrodynamical calculations at non-zero thermal conductivity, $\kappa \neq 0$, onset of the spinodal instability occurs, when the system trajectory crosses the isothermal spinodal line. Only for $\kappa = 0$ it occurs at a cross of the adiabatic spinodal line. Therefore ideal hydrodynamics is not suited for an appropriate description of first-order phase transitions.

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