Spin polarization and color superconductivity in the Nambu--Jona-Lasinio model at finite temperature
arXiv:1611.02394 · doi:10.1103/PhysRevD.95.054025
Abstract
We investigate the possible existence of spin polarization and color superconductivity in the Nambu--Jona-Lasinio model with a tensor-type interaction at finite density and temperature. The thermodynamic potential is calculated by the functional integral method. Numerical results indicate that at low temperature and quark chemical potential the chiral condensed phase exists, and at intermediate chemical potential the color superconducting phase appears. In addition, depending on the magnitude of the tensor coupling, at large chemical potential and low temperature, a color superconducting phase and a spin polarized phase may coexist while at intermediate temperatures only the spin polarized phase occurs.
10 pages, 5 figures
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Cited by in corpus (8)
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- Hybrid stars from the NJL model with a tensor interaction
- Spin polarized phases in strongly interacting matter: interplay between axial-vector and tensor mean fields
- Spin Polarization and Chiral Condensation in 2+1 flavor Nambu-Jona-Lasinio model at finite temperature and baryon chemical potential
- Spin polarizations under a pseudovector interaction between quarks with the Kobayashi-Maskawa-'t Hooft term in high density quark matter
- Non-zero tensor condensates in cold quark matter within the three-flavor Nambu-Jona-Lasinio model with the Kobayashi-Maskawa-'t Hooft interaction
- Hybrid stars from a three-flavor NJL model with two kinds of tensor condensates
- Axial-Vector and Tensor Spin Polarization and Chiral Restoration in Quark Matter