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Inhomogeneous Chiral and Coulomb Crystal in Neutron Stars

  • Nobutoshi Yasutake (a1), Tong-Gyu Lee (a2), Toshiki Maruyama (a3) and Toshitaka Tatsumi (a4)


We study the possibility of two types of inhomogeneous phases in core of neutron stars: one is the Coulomb crystal, which is known as quark-hadron pasta structures, and another one is chiral crystal. In the Coulomb crystal, the inhomogeneous phase appears as the result of the balance between the surface tension and the Coulomb interaction. In chiral crystal, we study the inhomogeneous chiral condensate, which has spatial modulation. In the simple model in 1+1 dimensions, this condensate has the same feature with the FFLO state, which is well known in the condensed matter physics.



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