The QCD Phase Diagram with Effective Theories

Ydalia Delgado*, Hans Gerd Evertz, Christof Gattringer, Daniel Göschl

*Corresponding author for this work

Research output: Contribution to journalConference article


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.
Original languageEnglish
JournalProceedings of Science
Publication statusPublished - 3 Nov 2011
Event29th International Symposium on Lattice Field Theory: Lattice 2011 - Lake Tahoe, United States
Duration: 10 Jul 201116 Jul 2011


  • hep-lat


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