Ground states in two-dimensional boson quantum field-theory

S. A. Pirogov, Yakov G. Sinai

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We consider λ:P(φ{symbol}):2 models of Euclidean quantum field theory, P(φ{symbol}) = Σk=1 2n akφ{symbol}k and define for them translation-invariant ground states. It appears that the number of them is not more than two provided λ m0 2 is large.

Original languageEnglish (US)
Pages (from-to)393-400
Number of pages8
JournalAnnals of Physics
Issue number2
StatePublished - Jan 1 1977
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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