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2d Model Field Theories at Finite Temperature and Density
Verena Schoen, Michael Thies
In certain 1+1 dimensional field theoretic toy models, one can go all the way from microscopic quarks via the hadron spectrum to the properties of hot and dense baryonic matter in…
Phases and Residual Gauge Symmetries of Higgs Models
Frieder Lenz, John W. Negele, Lochlainn O'Raifeartaigh +1
After elimination of the redundant variables, gauge theories may still exhibit symmetries associated with the gauge fields. The role of these residual gauge symmetries is discussed…
Emergence of Skyrme crystal in Gross-Neveu and 't Hooft models at finite density
Verena Schön, Michael Thies
We study two-dimensional, large field theoretic models (Gross-Neveu model, 't Hooft model) at finite baryon density near the chiral limit. The same mechanism which leads to mas…
Decompactification of space or time in large N QCD_2
Verena Schoen, Michael Thies
QCD_2 with fundamental quarks on a cylinder is solved to leading order in the 1/N expansion, including the zero mode gluons. As a result of the non-perturbative dynamics of these g…