Pion condensation in holographic QCD
arXiv:1007.3431 · doi:10.1103/PhysRevD.82.095002
Abstract
We study pion condensation at zero temperature in a hard-wall holographic model of hadrons with isospin chemical potential. We find that the transition from the hadronic phase to the pion condensate phase is first order except in a certain limit of model parameters. Our analysis suggests that immediately across the phase boundary the condensate acts as a stiff medium approaching the Zel'dovich limit of equal energy density and pressure.
19 pages, 7 eps figures