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arXiv · 1512.03894

Non-Abelian twisted kinks in chiral Gross-Neveu model with isospin

Michael Thies
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Abstract

The two-dimensional, massless Gross-Neveu model with Nc colors and SU(2) isospin is studied analytically in the large Nc limit. The chiral SU(2)L X SU(2)R symmetry is broken spontaneously in the vacuum. Twisted kinks connecting two arbitrary points on the vacuum manifold S3 are constructed, and their properties are explored. The phase diagram as a function of temperature, baryon- and isospin chemical potential is discussed, with special emphasis on inhomogeneous phases. The preferred form of the condensate is a product of the real kink crystal and the chiral spiral. Kink-kink scattering is solved, using the general solution of the multicomponent Bogoliubov-de Gennes equation recently presented by Takahashi.

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Michael Thies. 2016-04-05. Non-Abelian twisted kinks in chiral Gross-Neveu model with isospin. https://doi.org/10.1103/physrevd.93.085024

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