Color Superconductivity and Pion Superfluidity in Low Energy Effective Theory

摘要

1. 2SC depends strongly on diquark properties in vacuum. BCS or BEC? 2. There are indeed not five NG excitations in 2SC phase of NJL model. 3. Chromomagnetic instability is a general problem. Uniform ground state kicked out? LOFF? Fate of W.V.Liu and F.Wilczek's breached pairing? 4. NJL model works well at finite isospin chemical potential, the results are in good agreement with Lattice calculations.