SC13 Denver, CO

The International Conference for High Performance Computing, Networking, Storage and Analysis

Nuclear Pasta.

Authors: David Reagan (Indiana University), Andre S. Schneider (Indiana University), Charles J. Horowitz (Indiana University), Joseph Hughto (Indiana University), Don K. Berry (Indiana University), Eric A. Wernert (Indiana University), Chris Eller (Indiana University)

Abstract: A supernova is a dramatic event that in a fraction of a second transforms the 10^55 separate nuclei that form the core of a massive star into a single large nucleus, a neutron star. Between the crust and the core of a neutron star, matter reaches such large densities, 10^13 to 10^14 g/cm³, that what were initially spherical nuclei merge and rearrange themselves into exotic shapes such as sheets, cylinders and others. Because of the resemblance of some of these shapes to spaghetti and lasagna these phases of matter are collectively known as nuclear pasta. We use molecular dynamics (MD) simulations to study the transitions between the different pasta shapes as the density of matter decreases from uniform to much lower densities where nuclei become spherical again.

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