Phases and condensates in zero-temperature QCD at finite ${\mu }_I$ and ${\mu }_S$

Abstract

I discuss pion and koan condensation and the the properties of the phases of QCD at finite isospin chemical potential ${\mu }_I$ and strangeness chemical potential ${\mu }_S$ at zero temperature using three-flavor chiral perturbation theory. Electromagnetic effects are included in the calculation of the phase diagram, which implies that the charged meson condensed phases become superconducting phases of QCD with a massive photon via the Higgs mechanism. Without electromagnetic effects, we show results for the light quark condensate and the pion condensate as functions of ${\mu }_I$ at next-to-leading (NLO) order in the low-energy expansion. The results are compared with recent lattice simulations and by including the NLO corrections, one obtains very good agreement.

arXiv comment8 pages. Contributed talk given at XVth Quark confinement and the Hadron spectrum conference

References in corpus (6)

• The phase diagram of dense QCD
• QCD at finite isospin density
• Functional integrals for QCD at nonzero chemical potential and zero density
• QCD at finite isospin chemical potential
• Quark, pion and axial condensates in three-flavor finite isospin chiral perturbation theory
• Interatomic interaction effects on second-order momentum correlations and Hong-Ou-Mandel interference of double-well-trapped ultracold fermionic atoms