Nuclear pasta structures in neutron stars and the charge screening
  Non-uniform structures of the nucleon matter are expected at subnuclear densities and above the nuclear density: they are called nuclear pastas and kaon pastas, respectively. We numerically study these phases by means of the density functional theory with relativistic mean-fields and the electric field; the electric field is properly taken into account. Our results demonstrate a particular role of the charge screening effects on these non-uniform structures. 
Toshitaka Tatsumi, Toshiki Maruyama, Dmitri N. Voskresensky, Tomonori   Tanigawa, Satoshi Chiba