Color Ferromagnetic Quark Matter in Neutron Stars

Abstract

We show that color ferromagnetic phase of quark matter is energetically more favored than color superconducting phases in neutron stars. Namely, increasing baryon density in neutron stars transforms nuclear matter into the quark matter of the color ferromagnetic phase. Further increase of the density makes the quark matter take the color superconducting phases. We find that a critical mass of the neutron star with such an internal structure is about $1.6M_{\odot }$. We stress that analysis of gluon dynamics is crucial for exploring dense quark matter.

5 pages 2 figures

References in corpus (4)

• Hybrid stars that masquerade as neutron stars
• Screening masses in neutral two-flavor color superconductor
• Color Ferromagnetism of Quark Matter ; a Possible Origin of Strong Magnetic Field in Magnetars
• Quantum Hall States of Gluons in Quark Matter

Cited by in corpus (6)

• Effective Potential Approach to Quark Ferromagnetization in High Density Quark Matter
• Spontaneous magnetization under a pseudovector interaction between quarks in high density quark matter
• Spin polarization in high density quark matter under a strong external magnetic field
• Spin polarizations under a pseudovector interaction between quarks with the Kobayashi-Maskawa-'t Hooft term in high density quark matter
• Hybrid stars from a three-flavor NJL model with two kinds of tensor condensates
• Non-zero tensor condensates in cold quark matter within the three-flavor Nambu-Jona-Lasinio model with the Kobayashi-Maskawa-'t Hooft interaction