Abstract
The degeneracy of the vacuum according to chirality is proved. It is shown that the local source of the fermionic field leads to a change of the chiral charge density. This signifies screening of the chiral charge and, possibly, confinement. Both effects are due to topological fluctuations of the sigma-field.
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Additional information
St. Petersburg Higher Military Engineering College of Communications. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 11, pp. 77–80, November, 1993.
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Ismagilov, R.G. Degeneracy of the vacuum state according to chirality in the sigma-model with massless fermions. Russ Phys J 36, 1078–1081 (1993). https://doi.org/10.1007/BF00560449
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DOI: https://doi.org/10.1007/BF00560449