Improved Lattice Actions with Chemical Potential
High Energy Physics - Lattice
2009-10-31 v1 Nuclear Theory
Abstract
We give a prescription how to include a chemical potential \mu into a general lattice action. This inclusion does not cause any lattice artifacts. Hence its application to an improved - or even perfect - action at \mu =0 yields an improved resp. perfect action at arbitrary \mu. For short-ranged improved actions, a good scaling behavior holds over a wide region, and the upper bound for the baryon density - which is known for the standard lattice actions - can be exceeded.
Cite
@article{arxiv.hep-lat/9805014,
title = {Improved Lattice Actions with Chemical Potential},
author = {W. Bietenholz},
journal= {arXiv preprint arXiv:hep-lat/9805014},
year = {2009}
}
Comments
7 pages, LaTex, 8 figures, talk presented at workshop on "QCD at Finite Baryon Density", Bielefeld, April 27-30, 1998