September 15, 2014 to October 10, 2014
Nordita, Stockholm
Europe/Stockholm timezone

Defects in Nuclear Pasta

Sep 15, 2014, 10:00 AM
40m
FP41 (Nordita, Stockholm)

FP41

Nordita, Stockholm

Speaker

Charles Horowitz

Description

Dense nuclear matter, near the base of the crust in neutron stars, is expected to have complex nuclear pasta shapes because of coulomb frustration. Competition between short-range nuclear attraction and long-range coulomb repulsion insures that many different shapes have very similar energies. We report large-scale molecular dynamics simulations of nuclear pasta and find long-lived topological defects. These defects could increase electron pasta scattering and reduce the electrical and thermal conductivities. A reduced thermal conductivity may be visible in X-ray observations of neutron star crust cooling. A reduced electrical conductivity could lead to the decay of magnetic fields.

Presentation materials