Anisotropy parameters for the effective description of crystalline color superconductors
R. Casalbuoni, R. Gatto, M. Mannarelli, G. Nardulli
DOI 10.1103/PhysRevD.66.014006 · Physical Review D
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Abstract
In the high density low temperature limit, quantum chromodynamics (QCD) exhibits a transition to a phase characterized by color superconductivity and by energy gaps in the fermion spectra. Under specific circumstances the gap parameter has a crystalline pattern, breaking translational and rotational invariance. The corresponding phase is the the crystalline color superconductive phase [or Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) phase]. In the effective theory the fermions couple to the phonon arising from the breaking of rotation and translation invariance. We compute for the single-plane-wave condensate ansatz the parameters of the low energy effective Lagrangian describing the motion of the free phonon in the high density medium and derive the phonon dispersion law.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| QCD Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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