SU(2) color superconductivity

SU(2) color superconductivity is a theoretical concept in quantum chromodynamics (QCD), which is the part of the Standard Model of particle physics that describes the strong interaction between quarks and gluons. Color superconductivity refers to a phenomenon that can occur at extremely high densities, such as those found in the core of neutron stars or in heavy-ion collisions, where quarks can pair up in a superfluid state similar to how electrons pair up in conventional superconductors at low temperatures.