Pasta fluctuations in symmetric matter at finite temperature

Abstract

The equilibrium distributions of the different pasta geometries and their linear sizes are calculated from the mean field Gibbs energy functional in symmetric nuclear matter at finite temperature. The average sizes and shapes coincide approximately with the ones predicted by a standard pasta calculation in the coexisting phase approximation, but fluctuations are additionally calculated and seen to increase with temperature and baryonic density. The different pasta shapes are shown to coexist in a wide domain of density and temperature, in qualitative agreement with the findings of large scale molecular dynamics simulations, but with a much less expensive computational cost.

arXiv comment6 pages, 5 figures

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• A Neutron Star is born
• Impact of the neutron-star deformability on equation of state parameters
• Analytic multi-Baryonic solutions in the SU(N)-Skyrme model at finite density
• The proto-neutron star inner crust in a multi-component plasma approach
• Parametrization of the surface energy in the ETF approximation
• Fluctuations in the pasta phase
• Light clusters in the liquid proto-neutron star inner crust
• Pairing effects in nuclear pasta phase within the relativistic Thomas-Fermi formalism
• Do short range correlations inhibit the appearance of the nuclear pasta?