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

2006/12/31 by Florian Marhauser, Dominik Nickel, Michael Buballa +2 · 2 citations
Physics and Astronomy · #Ansatz #Anyon #Cold Atom Physics and Bose-Einstein Condensates #Color superconductivity #Gauge theory #Massless particle #Mathematical physics #Pairing #Parity (physics) #Physics #Physics of Superconductivity and Magnetism #Propagator #Quantum #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #Quark #Quasiparticle #Spin (aerodynamics) #Strange matter #Superconductivity #Topological quantum computer #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevd.75.054022

published as Phys.Rev.D75:054022,2007 · 9 pages, 7 figures

openalex publication_date 2007/03/16 · arxiv created 2007/03/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We investigate the color-spin locked 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 color-spin locked 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.

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