Spontaneous Symmetry Breaking with Abnormal Number of Nambu-Goldstone Bosons and Kaon Condensate

V. A. Miransky, I. A. Shovkovy

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

We describe a class of relativistic models incorporating a finite density of matter in which spontaneous breakdown of continuous symmetries leads to a lesser number of Nambu-Goldstone bosons than that required by the Goldstone theorem. This class, in particular, describes the dynamics of the kaon condensate in the color-flavor locked phase of high density QCD. We describe the spectrum of low energy excitations in this dynamics and show that, despite the presence of a condensate and gapless excitations, this system is not a superfluid.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review Letters
Volume88
Issue number11
DOIs
StatePublished - 2002
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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