Effective lagrangians for QCD at high density

Details Effective lagrangians for QCD at high density Effective lagrangians for QCD at high density

2001-08-27

arxiv.org/abs/hep-th/0108195v1

AIP Conf.Proc. 602 (2001) 358-367

Physics

High Energy Physics

High Energy Physics - Theory

LaTex 10 pages. No figures. Invited talk at the Conference "QCD@work", Martinafranca (Bari), June 16-20, 2001

Scientific paper

10.1063/1.1435947

We describe low energy physics in the CFL and LOFF phases by means of effective lagrangians. In the CFL case we present also how to derive expressions for the parameters appearing in the lagrangian via weak coupling calculations taking advantage of the dimensional reduction of fermion physics around the Fermi surface. The Goldstone boson of the LOFF phase turns out to be a phonon satisfying an anisotropic dispersion relation.

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