1996/10/31 by P. Coleman, Piers Coleman, Antoine Georges +2
Mathematics · Physics and Astronomy · #Condensed matter physics #Excitation #Excited state #Lattice (music) #Mathematics #Pairing #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Rare-earth and actinide compounds #Realization (probability) #Singlet state #Statistical physics #Superconductivity #Theoretical physics #cond-mat.str-el
paper · pdf · doi:10.1088/0953-8984/9/2/002
published as J. Phys: Cond Matt, Vol 79, 345 (1997). · 13 pages, latex with two postscript figures. Proceedings of ITP conference on non-Fermi liquid behavior, to appear in J. Phys. Cond. Matt
arxiv created 1996/10/31 · openalex publication_date 1997/01/13 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
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-dimensional model can be treated using mean-field theory. This paper was presented at the Institute of Theoretical Physics Conference on Non-Fermi Liquid Behaviour In Metals (Santa Barbara, CA, 17-21 June 1996). Other papers from this Conference were published in: 1996 J. Phys.: Condens. Matter 8 9675-10148