Reflections on the one-dimensional realization of odd-frequency pairing

P. Coleman, A. Georges, A. M. Tsvelik

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45 Scopus citations

Abstract

We discuss the odd-frequency pairing correlations discovered by Zachar, Kivelson and Emery (ZKE) in a one-dimensional Kondo lattice. A specific lattice model that realizes the continuum theory of ZKE is introduced and the correlations it gives rise to are identified as odd-frequency singlet pairing. The excitation spectrum is found to contain a spin gap, and a much lower energy band of spinless excitations. We discuss how the power-law correlations realized in the ZKE model evolve into true long-range order when Kondo chains are weakly coupled together and tentatively suggest a way in which the higher-dimentional model can be treated using mean-field theory.

Original languageEnglish (US)
Pages (from-to)345-356
Number of pages12
JournalJournal of Physics Condensed Matter
Volume9
Issue number2
DOIs
StatePublished - Jan 13 1997

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Materials Science(all)

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