Spinodal Instabilities in Nuclear Matter in a Stochastic Relativistic Mean-Field Approach

Abstract

Spinodal instabilities and early growth of baryon density fluctuations in symmetric nuclear matter are investigated in the basis of stochastic extension of relativistic mean-field approach in the semi-classical approximation. Calculations are compared with the results of non-relativistic calculations based on Skyrme-type effective interactions under similar conditions. A qualitative difference appears in the unstable response of the system: the system exhibits most unstable behavior at higher baryon densities around ${\rho }_b=0.4{\rho }_0$ in the relativistic approach while most unstable behavior occurs at lower baryon densities around ${\rho }_b=0.2{\rho }_0$ in the non-relativistic calculations

18 pages, 7 figures

References in corpus (5)

• A Stochastic Mean-Field Approach For Nuclear Dynamics
• Spinodal decomposition of low-density asymmetric nuclear matter
• Cluster formation in compact stars: relativistic versus Skyrme models
• Quantal Effects on Spinodal Instabilities in Charge Asymmetric Nuclear Matter
• Dynamical instabilities in density-dependent hadronic relativistic models

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• Equilibration in the time-dependent Hartree-Fock approach probed with the Wigner distribution function
• On growth of spinodal instabilities in nuclear matter
• On growth of spinodal instabilities in nuclear matter-II:asymmetric matter