Speaker
Dr
Yusuke Taniguchi
(University of Tsukuba)
Description
We study the energy-momentum tensor in QCD for $N_f$ = 2+1 dynamical quarks. In order to tame violation of the translational invariance on lattice we use the gradient flow method as a non-perturbative renormalization scheme. We adopt two values for the up and down quark mass. One is the physical mass with which we measure the one point function of the energy-momentum tensor and derive the equation of state in QCD. The other is a rather heavy mass of about $m_{ud}\simeq59$ MeV with $m_{\pi}/m_{\rho}\simeq0.63$. Using the latter gauge configuration we measure correlation functions of the energy-momentum tensor, from which we extract some transport coefficients. We also measure the chiral condensate and topological charge and study their temperature dependence.
Primary author
Dr
Yusuke Taniguchi
(University of Tsukuba)
