Breached Pairing Superfluidity: Possible Realization in QCD
Breached Pairing Superfluidity: Possible Realization in QCD
We propose a wide universality class of gapless superfluids, and analyze a limit that might be realized in quark matter at intermediate densities. In the breached pairing color superconducting phase heavy $s$ quarks, with a small Fermi surface, pair with light $u$ or $d$ quarks. The ground state has a …