Color superconductivity in dense quark matter

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dc.creatorAlford, Mark G.
dc.creatorRajagopal, Krishna
dc.creatorSchaefer, Thomas
dc.creatorSchmitt, Andreas
dc.date2007-09-28
dc.date2008-01-21
dc.date.accessioned2026-07-07T12:13:46Z
dc.date.available2026-07-07T12:13:46Z
dc.descriptionMatter at high density and low temperature is expected to be a color superconductor, which is a degenerate Fermi gas of quarks with a condensate of Cooper pairs near the Fermi surface that induces color Meissner effects. At the highest densities, where the QCD coupling is weak, rigorous calculations are possible, and the ground state is a particularly symmetric state, the color-flavor locked (CFL) phase. The CFL phase is a superfluid, an electromagnetic insulator, and breaks chiral symmetry. The effective theory of the low-energy excitations in the CFL phase is known and can be used, even at more moderate densities, to describe its physical properties. At lower densities the CFL phase may be disfavored by stresses that seek to separate the Fermi surfaces of the different flavors, and comparison with the competing alternative phases, which may break translation and/or rotation invariance, is done using phenomenological models. We review the calculations that underlie these results, and then discuss transport properties of several color-superconducting phases and their consequences for signatures of color superconductivity in neutron stars.
dc.description63 pages, v2: version to appear in Rev. Mod. Phys.; references added; small improvements at various points
dc.identifierhttps://arxiv.org/abs/0709.4635
dc.identifierhttp://arxiv.org/abs/0709.4635
dc.identifierRev.Mod.Phys.80:1455-1515,2008
dc.identifierdoi:10.1103/RevModPhys.80.1455
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/210962
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectSuperconductivity
dc.subjectNuclear Theory
dc.titleColor superconductivity in dense quark matter
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