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arXiv · 1110.6862

Solving the Complex Phase Problem in a QCD Related Model

Ydalia Delgado·Hans Gerd Evertz·Christof Gattringer
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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.

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Ydalia Delgado, Hans Gerd Evertz, Christof Gattringer. 2011-10-31. Solving the Complex Phase Problem in a QCD Related Model. https://doi.org/10.5506/aphyspolbsupp.4.703

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