Mass-Induced Crystalline Color Superconductivity

Abstract

We demonstrate that crystalline color superconductivity may arise as a result of pairing between massless quarks and quarks with nonzero mass m_s. Previous analyses of this phase of cold dense quark matter have all utilized a chemical potential difference δμto favor crystalline color superconductivity over ordinary BCS pairing. In any context in which crystalline color superconductivity occurs in nature, however, it will be m_s-induced. The effect of m_s is qualitatively different from that of δμin one crucial respect: m_s depresses the value of the BCS gap Δ_0 whereas δμleaves Δ_0 unchanged. This effect in the BCS phase must be taken into account before m_s-induced and δμ-induced crystalline color superconductivity can sensibly be compared.

12 pages, 4 figures. v2: very small change only

References in corpus (4)

• The Minimal CFL-Nuclear Interface
• High Density Quark Matter under Stress
• Novel phases and transitions in Color Flavor Locked matter
• Opening the Crystalline Color Superconductivity Window

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• Evaluating the Gapless Color-Flavor Locked Phase
• The Crystallography of Three-Flavor Quark Matter
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• Stressed pairing in conventional color superconductors is unavoidable
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