Recently, we proposed a novel method to define and calculate the energy-momentum tensor (EMT) in lattice gauge theory on the basis of the Yang-Mills gradient flow [1]. In this proceedings, we summarize the basic idea and technical steps to obtain the bulk thermodynamic quantities in lattice gauge theory using this method for the quenched and (2+1)-flavor QCD. The revised results of integration measure (trace anomaly) and entropy density of the quenched QCD with corrected coefficients are shown. Furthermore, we also show the flow time dependence of the parts of EMT including the dynamical fermions. This work is based on a joint-collaboration between FlowQCD and WHOT QCD.
@article{arxiv.1511.03009,
title = {(2+1)-flavor QCD Thermodynamics from the Gradient Flow},
author = {Etsuko Itou and Hiroshi Suzuki and Yusuke Taniguchi and Takashi Umeda},
journal= {arXiv preprint arXiv:1511.03009},
year = {2015}
}
Comments
7 pages, Proceedings for the 33rd International Symposium on Lattice Field Theory 14 -18 July 2015 Kobe International Conference Center, Kobe, Japan