Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-05-21
Nucl.Phys.B573:434-446,2000
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, 5 figures, 3 figures drawn using PicTeX
Scientific paper
10.1016/S0550-3213(99)00615-X
Deryagin, Grigoriev, and Rubakov (DGR) have shown that in finite-density QCD at infinite Nc the Fermi surface is unstable with respect to the formation of chiral waves with wavenumber twice the Fermi momentum, while the BCS instability is suppressed. We show here that at large, but finite Nc, the DGR instability only occurs in a finite window of chemical potentials from above Lambda_QCD to mu_critical = exp(gamma ln^2 Nc + O(ln Nc ln ln Nc))Lambda_QCD, where gamma = 0.02173. Our analysis shows that, at least in the perturbative regime, the instability occurs only at extremely large Nc, Nc > 1000 Nf, where Nf is the number of flavors. We conclude that the DGR instability is not likely to occur in QCD with three colors, where the ground state is expected to be a color superconductor. We speculate on possible structure of the ground state of finite-density QCD with very large Nc.
Shuster Eugene
Son Dam T.
No associations
LandOfFree
On finite-density QCD at large Nc 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 On finite-density QCD at large Nc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On finite-density QCD at large Nc will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-80629