Thermal conductivity in dynamics of first-order phase transition

Abstract

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, $\kappa \ne 0$, 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.

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

References in corpus (6)

• Viscosity Information from Relativistic Nuclear Collisions: How Perfect is the Fluid Observed at RHIC?
• Dynamical phase trajectories for relativistic nuclear collisions
• Phase transition dynamics for baryon-dense matter
• Density fluctuations in the presence of spinodal instabilities
• Chiral phase transition in the presence of spinodal decomposition
• Hydrodynamical description of a hadron-quark first-order phase transition

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• Hydrodynamics of Resonances
• RMF models with $\sigma$-scaled hadron masses and couplings for description of heavy-ion collisions below 2A GeV
• Viscosity and thermal conductivity effects at first-order phase transitions in heavy-ion collisions
• Covariant formulation of spinodal decomposition in rapidly expanding quark gluon plasma