Dense baryon matter with isospin and chiral imbalance in the framework of a NJL4 model at large Nc: Duality between chiral symmetry breaking and charged pion condensation

In this paper the phase structure of dense quark matter has been investigated at zero temperature in the presence of baryon, isospin and chiral isospin chemical potentials in the framework of massless (3+1)-dimensional Nambu–Jona-Lasinio model with two quark flavors. It has been shown that in the la...

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Veröffentlicht in:Physical review. D 2018-03, Vol.97 (5)
Hauptverfasser: Khunjua, T G, Klimenko, K G, Zhokhov, R N
Format: Artikel
Sprache:eng
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Zusammenfassung:In this paper the phase structure of dense quark matter has been investigated at zero temperature in the presence of baryon, isospin and chiral isospin chemical potentials in the framework of massless (3+1)-dimensional Nambu–Jona-Lasinio model with two quark flavors. It has been shown that in the large-Nc limit (Nc is the number of colors of quarks) there exists a duality correspondence between the chiral symmetry breaking phase and the charged pion condensation one. The key conclusion of our studies is the fact that chiral isospin chemical potential generates charged pion condensation in dense quark matter with isotopic asymmetry.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.97.054036