Effective description of the LOFF phase of QCD

Details Effective description of the LOFF phase of QCD Effective description of the LOFF phase of QCD

2002-05-10

arxiv.org/abs/hep-ph/0205098v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk at the Giselda Meeting, Frascti (Roma), 14-18 Jen 2001. Latex file, 7 pages, 1 figure

Scientific paper

We present an effective field theory for the crystalline color superconductivity phase of QCD. It is kown that at high density and at low temperature QCD exhibits a transition to a color superconducting phase characterized 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 crystalline color superconductive phase (or {\it LOFF} phase). We compute 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.

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