Surprises in nonperturbative dynamics in σ-model at finite density

V. P. Gusynin, V. A. Miransky, I. A. Shovkovy

Research output: Contribution to journalShort surveypeer-review

20 Scopus citations


The linear SU(2)L x SU(2)R σ-model occupies a unique place in elementary particle physics and quantum field theory. It has been recently realized that when a chemical potential for hypercharge is added, it becomes a toy model for the description of the dynamics of the kaon condensate in high density QCD. We review recent results in nonperturbative dynamics obtained in the ungauged and gauged versions of this model.

Original languageEnglish (US)
Pages (from-to)1341-1356
Number of pages16
JournalModern Physics Letters A
Issue number18
StatePublished - Jun 14 2004
Externally publishedYes


  • High density QCD
  • Linear σ-model
  • Spontaneous symmetry breaking

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics
  • General Physics and Astronomy


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