Chromomagnetic stability of the CFL phase with a meson current

Abstract

We show that the color-flavor locked (CFL) phase of dense quark matter is unstable with respect to the formation of a Goldstone boson current in the vicinity of the point $m_s^2=2\mu \Delta$. In this Goldstone boson current phase all components of the magnetic screening mass are real.

Comments: 4 pages; Contribution to the proceedings of the International Conference on Strong & Electroweak Matter 2006, Brookhaven National Laboratory, Upton, NY, May 2006