Temperature derivative divergence of the electric conductivity and thermal photon emission rate at the critical end point from holography

Yi-Ping Si, Danning Li, Mei Huang

The thermal photon emission rate $\frac{d\Gamma }{dk}$ and DC eletric conductivity ${\sigma }_Q$ of the strongly coupled quark-gluon plasma (sQGP) are investigated around the critical end poin…