1997/02/28 by Fabian H. L. Essler, Fabian H. L. Eßler, Holger Frahm · 1 citation
Mathematics · Physics and Astronomy · #Algebraic structures and combinatorial models #Black Holes and Theoretical Physics #Physics of Superconductivity and Magnetism #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.56.6631
published as Phys. Rev. B56 (1997) 6631-6641 · 16 pages of revtex, 8 figures, some typos corrected, references added
arxiv created 1997/05/26 · openalex publication_date 1997/09/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We study the singularities in x-ray absorption spectra of one-dimensional Hubbard and t-J models. We use boundary conformal field theory and the Bethe ansatz solutions of these models with both periodic and open boundary conditions to calculate the exponents describing the power-law decay near the edges of x-ray absorption spectra in the case where the core-hole potential has bound states.