The QCD Phase Diagram with Effective Theories

Details The QCD Phase Diagram with Effective Theories The QCD Phase Diagram with Effective Theories

2011-11-03

arxiv.org/abs/1111.0916v1

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 3 figures. Talk presented at The XXIX International Symposium on Lattice Field Theory - Lattice 2011, Squaw Valley, L

Scientific paper

We study two effective theories for QCD at non-zero temperature and finite chemical potential, using local Polyakov loops as the degrees of freedom. The sign problem is solved by exactly mapping the partition function to a sum over flux and monomer variables with only real and positive weights, making the two models accessible to Monte Carlo simulation techniques. We use generalized worm algorithms and a local Metropolis update to perform the simulations and determine the phase diagram as a function of the temperature and the chemical potential.

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