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BCS–BEC CROSSOVER IN RELATIVISTIC FERMI SYSTEMS

    https://doi.org/10.1142/S0217751X13300548Cited by:20 (Source: Crossref)

    We review the BCS–BEC crossover in relativistic Fermi systems, including the QCD matter at finite density. In the first part, we study the BCS–BEC crossover in a relativistic four-fermion interaction model and show how the relativistic effect affects the BCS–BEC crossover. In the second part, we investigate both two-color QCD at finite baryon density and pion superfluid at finite isospin density, by using an effective Nambu–Jona–Lasinio model. We will show how the model describes the weakly interacting diquark and pion condensates at low density and the BEC–BCS crossover at high density.

    PACS: 03.75.Hh, 11.10.Wx, 12.38.−t, 74.20.Fg
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