Mixed Kaon Condensation in CFL Matter

Abstract

Previous work on high-density QCD suggests that the ground state configuration in the presence of a non-zero neutrino chemical potential consists of CFL matter plus a homogenous condensate of neutral and positive kaons. We consider here the stability of this homogenous configuration toward the production of a charge-separated mixed phase, and find that the system is indeed stable against the production of such a heterogenous configuration. We identify the critical value of the fine structure constant which would allow for phase separation. We also derive dispersion relations for the low-lying excitations above the kaon-condensed ground state and discuss their possible phenomenological implications.

13 pages, 4 figures

References in corpus (6)

• Enforced Electrical Neutrality of the Color-Flavor Locked Phase
• The Minimal CFL-Nuclear Interface
• Novel phases and transitions in Color Flavor Locked matter
• Global Strings in High Density QCD
• Charged and superconducting vortices in dense quark matter
• Charged kaon condensation in high density quark matter

Cited by in corpus (4)

• Spontaneous Superfluid Current Generation in CFL at Nonzero Strange Quark Mass
• QCD at high density/temperature
• Neutrino processes in the $K^0$ condensed phase of color flavor locked quark matter
• Effective Theory of the Color-Flavor-Locked Phase