Speaker
Chengfu Mu
Description
We investigate the competition between chiral density wave (CDW) and two-flavor LOFF phase of color superconductivity in the Nambu-Jona-Lasinio (NJL) model. A first order phase transition connects the chiral density wave and LOFF phase if the diquark coupling constant Gd is not
very large, which is independent of the relative direction of chiral wave vector ⃗q and LOFF pair momentum ⃗q′. There are two tricritical points in which chiral density wave, LOFF, 2SC and chiral density wave, LOFF and restored phase coincides, respectively. When diquark coupling constant Gd continuously increases to a certain value, the chiral density wave is separated with the LOFF by 2SC and restored phase.
