We explore, using a Ginzburg-Landau expansion of the free energy, the Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) phase of QCD with three flavors, using the NJL four-fermion coupling to mimic gluon interactions. We find that, below the point where the QCD homogeneous superconductive phases should give way to the normal phase, Cooper condensation of the pairs u-s and d-u is possible, but in the form of the inhomogeneous LOFF pairing.
Ginzburg-Landau approach to the three flavor LOFF phase of QCD / R. CASALBUONI; R. GATTO; N. IPPOLITO; G. NARDULLI; M. RUGGIERI. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - B627:(2005), pp. 89-96.
Ginzburg-Landau approach to the three flavor LOFF phase of QCD
CASALBUONI, ROBERTO;
2005
Abstract
We explore, using a Ginzburg-Landau expansion of the free energy, the Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) phase of QCD with three flavors, using the NJL four-fermion coupling to mimic gluon interactions. We find that, below the point where the QCD homogeneous superconductive phases should give way to the normal phase, Cooper condensation of the pairs u-s and d-u is possible, but in the form of the inhomogeneous LOFF pairing.
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