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Inhomogeneous phases and chiral symmetry breaking
TL;DR: In this paper, a 3+1-dimensional QCD-inspired NJL model with quarkhole condensation in the form of a plane wave in the scalar and tensor channels is presented.
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Abstract: In the past few years, a growing number of compelling arguments, backed up by model calculations, pointed out that the intermediate-density region of the QCD phase diagram may be characterized by the formation of inhomogeneous condensates which spontaneously break some of the spatial symmetries of the theory. In the following we provide a brief recapitulation of these arguments and describe some recent results in a 3+1-dimensional QCD-inspired NJL model with quark-hole condensation in the form of a plane wave in the scalar and tensor channels. This model exhibits particular features in close analogy to its 1+1-dimensional counterpart, most notably an asymmetric spectral density and the arising of an anomalous contribution to the free energy.
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Citations
Color superconductivity in dense quark matter
Mark G. Alford
- 01 Jan 2000
TL;DR: The color-flavor locked (CFL) phase as discussed by the authors is a color superconductor, which is a degenerate Fermi gas of quarks with a condensate of Cooper pairs near the surface that induces color Meissner effects.
416
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Quarkyonic Chiral Spirals in a Magnetic Field
TL;DR: In this paper, the formation of quarkyonic chiral spirals in the presence of a magnetic field is discussed, where the explicit breaking of the rotational symmetry by the external magnetic field gives rise to an additional chiral spiral that varies along the field direction and rotates in the chiral space between pion and magnetic moment components.
4
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Quarkyonic Chiral Spirals in the Nambu-Jona-Lasinio Approach
TL;DR: In this article, the authors explore the inhomogeneous QCD phases at finite density and temperature using a (3+1)-dimensional Nambu-Jona-Lasinio (NJL) model in the large Nc limit with an additional attractive tensor-tensor interaction channel.
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References
The Condensed Matter Physics of QCD
Krishna Rajagopal,Frank Wilczek +1 more
TL;DR: In this article, the phase diagram of QCD as a function of temperature and density is discussed, and a look at possible astrophysical signatures is given, along with a discussion of possible signatures.
617
Inhomogeneous chiral condensates
TL;DR: In this article, the chiral condensate may become spatially modulated at moderately high densities where in the traditional picture of the QCD phase diagram a first-order chiral phase transition occurs.
288
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Phases of QCD
TL;DR: The phase diagram of QCD as a function of the temperature and baryon density has been discussed in this paper, focusing on the high temperature plasma phase, the low temperature and low density nuclear phase, and the high density color superconducting phases.
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Inhomogeneous chiral condensates
TL;DR: In this paper, the chiral condensate may become spatially modulated at moderately high densities where in the traditional picture of the QCD phase diagram a first-order chiral phase transition occurs.
6