Testing Algorithms for Finite Temperature Lattice QCD
High Energy Physics - Lattice
2008-11-26 v1
Abstract
We discuss recent algorithmic improvements in simulating finite temperature QCD on a lattice. In particular, the Rational Hybrid Monte Carlo(RHMC) algorithm is employed to generate lattice configurations for 2+1 flavor QCD. Unlike the Hybrid R Algorithm, RHMC is reversible, admitting a Metropolis accept/reject step that eliminates the errors inherent in the R Algorithm. We also employ several algorithmic speed-ups, including multiple time scales, the use of a more efficient numerical integrator, and Hasenbusch pre-conditioning of the fermion force.
Cite
@article{arxiv.hep-lat/0608016,
title = {Testing Algorithms for Finite Temperature Lattice QCD},
author = {M. Cheng and M. A. Clark and C. Jung and R. D. Mawhinney},
journal= {arXiv preprint arXiv:hep-lat/0608016},
year = {2008}
}
Comments
4 pages, 2 figures, poster presented at International Conference on Strong and Electroweak Matter 2006 (SEWM2006), BNL, May 10-13, 2006