Shear viscosity in weakly coupled $\mathcal{N}=4$ Super Yang-Mills theory compared to QCD

Simon C. Huot, Sangyong Jeon, Guy D. Moore

We compute the shear viscosity of weakly coupled N=4 supersymmetric Yang-Mills (SYM) theory. Our result for [eta/s], the viscosity to entropy-density ratio, is many times smaller t…