Thermodynamics of SU(3) gauge theory at fixed lattice spacing
Abstract
We study thermodynamics of SU(3) gauge theory at fixed scales on the lattice, where we vary temperature by changing the temporal lattice size N_t=(Ta_t)^{-1}. In the fixed scale approach, finite temperature simulations are performed on common lattice spacings and spatial volumes. Consequently, we can isolate thermal effects in observables from other uncertainties, such as lattice artifact, renormalization factor, and spatial volume effect. Furthermore, in the EOS calculations, the fixed scale approach is able to reduce computational costs for zero temperature subtraction and parameter search to find lines of constant physics, which are demanding in full QCD simulations. As a test of the approach, we study the thermodynamics of the SU(3) gauge theory on isotropic and anisotropic lattices. In addition to the equation of state, we calculate the critical temperature and the static quark free energy at a fixed scale.
Keywords
Cite
@article{arxiv.0810.1570,
title = {Thermodynamics of SU(3) gauge theory at fixed lattice spacing},
author = {T. Umeda and S. Ejiri and S. Aoki and T. Hatsuda and K. Kanaya and Y. Maezawa and H. Ohno},
journal= {arXiv preprint arXiv:0810.1570},
year = {2010}
}
Comments
7pages, 3figures, proceedings of Lattice 2008, Williamsburg, Virginia, USA, July 14-19, 2008