Exact results for a one-dmensional t-J model with impurity

1994/12/02 by P. -A. Bares, P.-A. Bares, Bares, P. -A.
Physics and Astronomy · #Black Holes and Theoretical Physics #Condensed Matter (cond-mat) #FOS: Physical sciences #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #cond-mat

paper · pdf · doi:10.48550/arxiv.cond-mat/9412011

13 pages, REVTex, no figures

arxiv created 1994/12/02 · openalex publication_date 1994/12/02 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We propose a simple idea to construct 1D integrable models with impurities. We illustrate the strategy for a supersymmetric t-J Hamiltonian in considerable detail. The impurity comprises the local deformation of the hopping and exchange integrals as well as a three-body charge-current interactions on neighboring sites. We explore the thermodynamic properties of the system at low and high temperatures, and obtain results that are beyond boundary conformal-field theory.

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