Transport anomalies near the QCD phase transition at finite density

Abstract

We show that at finite density pressure-pressure and current-current correlators exhibit divergences at $T_c$ owing to the fluctuations of the diquark field. Specifically, this leads to a significant excess of the soft photon production rate near $T_c$.

Comments: 3 pages, 1 figure; contribution to the 2019 QCD session of the 54th Rencontres de Moriond