Time-dependent Hartree-Fock approach to nuclear "pasta" at finite temperature

Schuetrumpf B, Klatt M, Iida K, Maruhn JA, Mecke K, Reinhard PG (2013)

Publication Status: Published

Publication Type: Journal article

Publication year: 2013

Journal

Physical Review C - Nuclear Physics American Physical Society

Publisher: AMER PHYSICAL SOC

Book Volume: 87

Journal Issue: 5

DOI: 10.1103/PhysRevC.87.055805

Abstract

We present simulations of neutron-rich matter at subnuclear densities, like supernova matter, with the time-dependent Hartree-Fock approximation at temperatures of several MeV. The initial state consists of alpha particles randomly distributed in space that have aMaxwell-Boltzmann distribution in momentum space. Adding a neutron background initialized with Fermi distributed plane waves the calculations reflect a reasonable approximation of astrophysical matter. This matter evolves into spherical, rod-like, and slab-like shapes and mixtures thereof. The simulations employ a full Skyrme interaction in a periodic three-dimensional grid. By an improved morphological analysis based on Minkowski functionals, all eight pasta shapes can be uniquely identified by the sign of only two valuations, namely the Euler characteristic and the integral mean curvature. In addition, we propose the variance in the cell density distribution as a measure to distinguish pasta matter from uniform matter.

Authors with CRIS profile

Michael Klatt Lehrstuhl für Theoretische Physik Klaus Mecke Lehrstuhl für Theoretische Physik Paul-Gerhard Reinhard Naturwissenschaftliche Fakultät

Involved external institutions

Goethe-Universität Frankfurt am Main DE Germany (DE) Kochi University of Technology / 高知工科大学 JP Japan (JP)

How to cite

APA:

Schuetrumpf, B., Klatt, M., Iida, K., Maruhn, J.A., Mecke, K., & Reinhard, P.-G. (2013). Time-dependent Hartree-Fock approach to nuclear "pasta" at finite temperature. Physical Review C - Nuclear Physics, 87(5). https://doi.org/10.1103/PhysRevC.87.055805

MLA:

Schuetrumpf, Bastian, et al. "Time-dependent Hartree-Fock approach to nuclear "pasta" at finite temperature." Physical Review C - Nuclear Physics 87.5 (2013).

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