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

4 Sep 2012, 11:00
30m

Speaker

Mr Bastian Schuetrumpf (Institut fuer Theoretische Physik, Goethe-Universitaet)

Description

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. 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. With an improved Minkowski analysis, all eight pasta shapes can be uniquely identified by the sign of only two values, namely the Euler characteristic and the integral mean curvature. The initial state consists of alpha particles randomly distributed in space and with a Maxwell-Boltzmann distribution in momentum space. Adding a neutron background initialized with Fermi-distributed plane waves the calculations reflect a reasonable approximation of astrophysical matter.

Primary author

Mr Bastian Schuetrumpf (Institut fuer Theoretische Physik, Goethe-Universitaet)

Co-authors

Prof. Joachim Maruhn (Institut fuer Theoretische Physik, Goethe-Universitaet) Prof. Klaus Mecke (Institut fuer Theoretische Physik, Universitaet Erlangen-Nuernberg, D-91058 Erlangen, Germany) Mr Michael Klatt (Institut fuer Theoretische Physik, Universitaet Erlangen-Nuernberg, D-91058 Erlangen, Germany) Prof. Paul-Gerhard Reinhard (Institut fuer Theoretische Physik, Universitaet Erlangen-Nuernberg, D-91058 Erlangen, Germany)

Presentation Materials

There are no materials yet.