Number of QCD critical points with neutral color superconductivity
نویسندگان
چکیده
منابع مشابه
Strange color superconductivity in QCD
We propose a new state, strange color superconductivity, that appears in strange quark matter when total barion number density is fixed. In this state, heavy squarks, with a small Fermi surface, ’strangly’ pair with light u or d quarks that have a larger nominal Fermi surface, opening a gap there. There are gapless states in the intermediate region. Strange color superconductivity might be real...
متن کاملCritical couplings in Crystalline Color superconductivity
Solving the Schwinger-Dyson equations, we analyze the pairing of quarks in asymmetric quark matter where quarks have different chemical potentials. We show that in the asymmetric quark matter a crystalline color-superconducting gap opens when the quark coupling is stronger than a critical value. The critical coupling is nonzero, since the infrared divergence is lessened when the momenta of pair...
متن کاملColor Superconductivity of QCD at High Baryon Density ∗ Hai - cang
At sufficiently high baryon density, a quark matter is expected to become a color superconductor because of the pairing forces mediated by gluons. The theoretical aspect of this novel phase of the strong interaction is reviewed with the emphasis on the perturbation theory of QCD at high chemical potential and low temperature. The derivation of the scaling formula of the supercon-ducting transit...
متن کاملQCD at Finite Baryon Density: Nucleon Droplets and Color Superconductivity
We use a variational procedure to study finite density QCD in an approximation in which the interaction between quarks is modelled by that induced by instantons. We find that uniform states with conventional chiral symmetry breaking have negative pressure with respect to empty space at all but the lowest densities, and are therefore unstable. This is a precisely defined phenomenon which motivat...
متن کاملNeutral Color Superconductivity Including Inhomogeneous Phases at Finite Temperature
We investigate neutral quark matter with homogeneous and inhomogeneous color condensates at finite temperature in the frame of an extended NJL model. By calculating the Meissner masses squared and gap susceptibility, the uniform color superconductor is stable only in a temperature window close to the critical temperature and becomes unstable against LOFF phase, mixed phase and gluonic phase at ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2009
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.79.014004