We study the pressure anisotropy in anisotropic finite-size systems in SU(3) Yang-Mills theory at nonzero temperature. Lattice simulations are performed on lattices with anisotropic spatial volumes with periodic boundary conditions. The energy-momentum tensor defined through the gradient flow is used for the analysis of the stress tensor on the lattice. We find that a clear finite-size effect in the pressure anisotropy is observed only at a significantly shorter spatial extent compared with the free scalar theory, even when accounting for a rather large mass in the latter.
@article{arxiv.1904.00241,
title = {Anisotropic pressure induced by finite-size effects in SU(3) Yang-Mills theory},
author = {Masakiyo Kitazawa and Sylvain Mogliacci and Isobel Kolbé and W. A. Horowitz},
journal= {arXiv preprint arXiv:1904.00241},
year = {2019}
}