Three and Two Colours Finite Density QCD at Strong Coupling: A New Look

Details Three and Two Colours Finite Density QCD at Strong Coupling: A New Look Three and Two Colours Finite Density QCD at Strong Coupling: A New Look

1999-10-06

arxiv.org/abs/hep-lat/9910015v1

Nucl.Phys. B564 (2000) 489-499

Physics

High Energy Physics

High Energy Physics - Lattice

18 pages, 9 figures, to appear in Nucl. Phys. B

Scientific paper

10.1016/S0550-3213(99)00635-5

Simulations in finite density, beta=0 lattice QCD by means of the Monomer-Dimer-Polymer algorithm show a signal of first order transition at finite temporal size. This behaviour agrees with predictions of the mean field approximation, but is difficult to reconcile with infinite mass analytical solution. The MDP simulations are considered in detail and severe convergence problems are found for the SU(3) gauge group, in a wide region of chemical potential. Simulations of SU(2) model show discrepancies with MDP results as well.

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