Fermionic Collective Modes in QGP near Critical Temperatures

Abstract

We investigate the quark spectrum in the quark-gluon plasma phase near color superconducting (CS) and chiral phase transitions. Owing to the precursory soft modes of the phase transitions, there appear novel excitaion spectra: In the CS transition, the quark matter shows non-Fermi liquid behavior and leads to the pseudogap in the density of states of quarks. In the chiral transition, three collective excitations appear in the quark spectrum.

Comments: 4 pages, 3 figures, talk at the Yukawa International Seminar (YKIS) 2006, "New frontiers in QCD", Kyoto, Japan