Diquark and Pion Condensation in Random Matrix Models for two-color QCD

Details Diquark and Pion Condensation in Random Matrix Models for two-color QCD Diquark and Pion Condensation in Random Matrix Models for two-color QCD

2004-05-19

arxiv.org/abs/hep-ph/0405180v1

Phys.Rev. D72 (2005) 015007

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 7 figures, RevTeX4

Scientific paper

10.1103/PhysRevD.72.015007

We introduce a random matrix model with the symmetries of QCD with two colors at nonzero isospin and baryon chemical potentials and temperature. We analyze its phase diagram and find phases with condensation of pion and diquark states in addition to the phases with spontaneously broken chiral symmetries. In the limit of small chemical potentials and quark masses, we reproduce the mean field results obtained from chiral Lagrangians. As in the case of QCD with three colors, the presence of two chemical potentials breaks the flavor symmetry and leads to phases that are characterized by different behaviors of the chiral condensates for each flavor. In particular, the phase diagram we obtain is similar to QCD with three colors and three flavors of quarks of equal masses at zero baryon chemical potential and nonzero isospin and strange chemical potentials. A tricritical point of the superfluid transitions found in lattice calculations and from an analysis in terms of chiral Lagrangians does not appear in the random matrix model. Remarkably, at fixed isospin chemical potential, for the regions outside of the superfluid phases, the phase diagram in the temperature - baryon chemical potential plane for two colors and three colors are qualitatively the same.

Affiliated with

Also associated with

No associations

Rating

Diquark and Pion Condensation in Random Matrix Models for two-color QCD does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Diquark and Pion Condensation in Random Matrix Models for two-color QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diquark and Pion Condensation in Random Matrix Models for two-color QCD will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-254750