X-ray edge singularity in integrable lattice models of correlated electrons

authored by: Fabian H.L. Eßler, Holger Frahm
Abstract: We study the singularities in x-ray absorption spectra of one-dimensional Hubbard and (Formula presented)-(Formula presented) 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.
Organisation(s): Institute of Theoretical Physics
External Organisation(s): University of Oxford
Type: Article
Journal: Physical Review B - Condensed Matter and Materials Physics
Volume: 56
Pages: 6631-6641
No. of pages: 11
ISSN: 1098-0121
Publication date: 15.09.1997
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials, Condensed Matter Physics
Electronic version(s): https://doi.org/10.1103/PhysRevB.56.6631 (Access: Unknown)
https://doi.org/10.15488/5085 (Access: Open)