Crystalline Color Superconductivity: Effective Lagrangian and Phonon Dispersion Law

Abstract

The recent study by Bowers and Rajagopal on the possible structures for the QCD crystalline color superconducting phase favors a cubic structure and allows for a first discussion of the QCD dynamics in the crystalline phase. The cubic structure leads to complete breaking of traslation invariance and to three phonon modes. We discuss the expected form of the effective Lagrangian and the phonon dispersion laws assuming the proposed crystal structure. Besides the interest for QCD and the related possible relevance to compact stars these considerations may become useful to atomic systems exhibiting crystalline superfluidity.

Final version to be published on Physics Letters, 16 pages, 2 figures

References in corpus (5)

• A quasi-pure Bose-Einstein condensate immersed in a Fermi sea
• Resonance superfluidity in a quantum degenerate Fermi gas
• A Diagrammatic Approach to Crystalline Color Superconductivity
• Opening the Crystalline Color Superconductivity Window
• Effective Field Theory for the Crystalline Colour Superconductive Phase of QCD

Cited by in corpus (10)

• Color superconductivity in dense quark matter
• Inhomogeneous Superconductivity in Condensed Matter and QCD
• Interweaving Chiral Spirals
• Neutrino scattering off pair-breaking and collective excitations in superfluid neutron matter and in color-flavor locked quark matter
• Effective Gap Equation for the Inhomogeneous LOFF Superconductive Phase
• Phonons and gluons in the crystalline color superconducting phase of QCD
• Breaking rotational symmetry in two-flavor color superconductors
• Bremsstrahlung neutrinos from electron-electron scattering in a relativistic degenerate electron plasma
• Quasi-particle Specific Heats for the Crystalline Color Superconducting Phase of QCD
• Magnetic properties of the Larkin-Ovchinnikov-Fulde-Ferrell superconducting phase