Analytic continuation from imaginary to real chemical potential in two-color QCD
High Energy Physics - Lattice
2010-10-27 v2
Abstract
The method of analytic continuation from imaginary to real chemical potential is one of the most powerful tools to circumvent the sign problem in lattice QCD. Here we test this method in a theory, 2-color QCD, which is free from the sign problem. We find that the method gives reliable results, within appropriate ranges of the chemical potential, and that a considerable improvement can be achieved if suitable functions are used to interpolate data with imaginary chemical potential.
Cite
@article{arxiv.hep-lat/0612018,
title = {Analytic continuation from imaginary to real chemical potential in two-color QCD},
author = {Paolo Cea and Leonardo Cosmai and Massimo D'Elia and Alessandro Papa},
journal= {arXiv preprint arXiv:hep-lat/0612018},
year = {2010}
}
Comments
28 pages, 16 figures, references added, minor changes in Sections 3.3 and 4. Final version to appear in JHEP