@article{2e972ece8cb9470bac164263ebbb1316,
title = "Viscosity of pure-glue QCD from the lattice",
abstract = "We calculate shear viscosity and bulk viscosity in SU(3) gauge theory on the lattice at 1.5Tc. The viscosities are extracted via a Kubo formula from the reconstructed spectral function which we determine from the Euclidean time dependence of the corresponding channel of the energy-momentum tensor correlators. We obtain unprecedented precision for the correlators by applying gradient-flow and blocking methods. The correlators are extrapolated to the continuum and then to zero-flow time. To extract the viscosities we fit theoretically inspired models to the lattice data and cross-check the fit results using the Backus-Gilbert method. The final estimates for shear and bulk viscosity are η/s=0.15-0.48 and ζ/s=0.017-0.059.",
author = "Luis Altenkort and Eller, {Alexander M.} and Anthony Francis and Olaf Kaczmarek and Lukas Mazur and Moore, {Guy D.} and Shu, {Hai Tao}",
note = "Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",
year = "2023",
month = jul,
day = "1",
doi = "10.1103/PhysRevD.108.014503",
language = "English",
volume = "108",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "1",
}