Abstract
We study thermodynamics of strongly coupled lattice QCD with two colors of massless staggered fermions as a function of the baryon chemical potential in dimensions using a new cluster algorithm. We find evidence that the model undergoes a weak first order phase transition at which becomes second order at a finite . Symmetry considerations suggest that the universality class of these phase transitions should be governed by a field theory with collinear order, with at and at . The universality class of the second order phase transition at appears to be governed by the decoupled fixed point present in the field theory. Finally we show that the quantum () phase transition as a function of is a second order mean field transition.
4 More- Received 27 March 2006
DOI:https://doi.org/10.1103/PhysRevD.74.014506
©2006 American Physical Society