Ferromagnetism and Superconductivity in Quark Matter - Color magnetic superconductivity -

Abstract

A coexistent phase of spin polarization and color superconductivity in high-density QCD is studied at zero temperature. The axial-vector self-energy stemming from the Fock exchange term of the one-gluon-exchange interaction has a central role to cause spin polarization. As a significant feature, the Fermi surface is deformed by the axial-vector self-energy and then rotation symmetry is spontaneously broken down. The gap function results in being anisotropic in the momentum space in accordance with the deformation. It is found that spin polarization barely conflicts with color superconductivity, and almost coexists with it.

Proc. of Int. Workshop, "Finite Density QCD", 2003

Cited by in corpus (21)

• Quantum field theory in a magnetic field: From quantum chromodynamics to graphene and Dirac semimetals
• Region of hadron-quark mixed phase in hybrid stars
• Possible Ferromagnetism in the Large N(c) and N(f) limit of quark matter
• Ferromagnetism in quark matter and origin of the magnetic field in compact stars
• Spontaneous magnetization in high-density quark matter
• Spin Polarized versus Chiral Condensate in Quark Matter at Finite Temperature and Density
• Magnetic susceptibility of quark matter within Fermi-liquid theory
• Superconductivity phenomenon induced by external in-plane magnetic field in (2+1)-dimensional Gross--Neveu type model
• Spontaneous magnetization under a pseudovector interaction between quarks in high density quark matter
• Spin polarization and color superconductivity in the Nambu--Jona-Lasinio model at finite temperature
• Hybrid stars from the NJL model with a tensor interaction
• Spontaneous magnetization in QCD and non-Fermi-liquid effects
• Non-Fermi-liquid effect in magnetic susceptibility
• Spin polarization in high density quark matter under a strong external magnetic field
• Appearance of a quark matter phase in hybrid stars
• 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
• A possibility of existence of a pseudovector-type quark-antiquark condensate in the quark matter and Nambu-Goldstone modes on that condensate in the Nambu-Jona-Lasinio model
• Hadronic matter phases and their application to rapidly rotating neutron stars
• Impact of Rotation on Quark-Hadron Hybrid Stars