Solving the Complex Phase Problem in a QCD Related Model
High Energy Physics - Lattice
2012-08-07 v1
Abstract
We discuss an effective theory for QCD at finite chemical potential and non-zero temperature, where QCD is reduced to its center degrees of freedom. The effective action can be mapped to a flux representation, where the complex phase problem is solved and the theory accessible to Monte Carlo techniques. In this work, we use a generalized Prokof'ev-Svistunov worm algorithm to perform the simulations and determine the phase diagram as a function of temperature, quark mass and chemical potential. It turns out that the transition is qualitatively as expected for QCD.
Cite
@article{arxiv.1110.6862,
title = {Solving the Complex Phase Problem in a QCD Related Model},
author = {Ydalia Delgado and Hans Gerd Evertz and Christof Gattringer},
journal= {arXiv preprint arXiv:1110.6862},
year = {2012}
}
Comments
6 pages and 3 figures, proceedings for "Excited QCD", Les Houches, France, 20 - 25 February, 2011