Color-spin locking in a self-consistent Dyson-Schwinger approach

Abstract

We investigate the color-spin locked (CSL) phase of spin-one color- superconducting quark matter using a truncated Dyson-Schwinger equation for the quark propagator in Landau gauge. Starting from the most general parity conserving ansatz allowed by the CSL symmetry, the Dyson-Schwinger equation is solved self-consistently and dispersion relations are discussed. We find that chiral symmetry is spontaneously broken due to terms which have previously been neglected. As a consequence, the excitation spectrum contains only gapped modes even for massless quarks. Moreover, at moderate chemical potentials the quasiparticle pairing gaps are several times larger than expected from extrapolated weak-coupling results.

9 pages, 7 figures

References in corpus (2)

• Two lectures on color superconductivity
• On the unlocking of color and flavor in color-superconducting quark matter

Cited by in corpus (5)

• Color superconductivity in dense quark matter
• Bulk viscosity in kaon-condensed color-flavor locked quark matter
• BCS-BEC crossover in a relativistic boson-fermion model beyond mean field approximation
• Neutrality of the color-flavor-locked phase in a Dyson-Schwinger approach
• Superfluid and Pseudo-Goldstone Modes in Three Flavor Crystalline Color Superconductivity