Topological characterization of neutron star crusts
  Neutron star crusts are studied using a classical molecular dynamics model developed for heavy ion reactions. After the model is shown to produce a plethora of the so-called "pasta" shapes, a series of techniques borrowed from nuclear physics, condensed matter physics and topology are used to craft a method that can be used to characterize the shape of the pasta structures in an unequivocal way. 
C. O. Dorso, P. A. Gim\'enez Molinelli and J. A. L\'opez
nucl-th