| Title: |
Tunneling spectroscopy of the spinon-Kondo effect in one-dimensional Mott insulators |
| Authors: |
Pereira, Rodrigo G.; Marquez, Bruno F.; Hallberg, Karen; Bauer, Tim; Egger, Reinhold |
| Publication Year: |
2026 |
| Collection: |
FU Berlin: Refubium |
| Subject Terms: |
Density matrix renormalization group; Kondo effect; 1-dimensional systems; ddc:530 |
| Description: |
We study the tunneling density of states (TDOS) in one-dimensional (1D) Mott insulators at energies below the charge gap. By employing nonlinear Luttinger liquid theory and density-matrix renormalization group (DMRG) simulations, we predict that in the presence of a magnetic impurity at the boundary, characteristic Fermi-edge singularity features can appear at subgap energies in the TDOS near the boundary. In contrast to the Kondo effect in a metal, these resonances are strongly asymmetric and of power-law form. The power-law exponent is universal and determined by the spinon-Kondo effect. |
| Document Type: |
article in journal/newspaper |
| File Description: |
9 Seiten; application/pdf |
| Language: |
English |
| DOI: |
10.17169/refubium-51199 |
| DOI: |
10.1103/wkmx-772j |
| Availability: |
https://refubium.fu-berlin.de/handle/fub188/51473; https://doi.org/10.17169/refubium-51199; https://doi.org/10.1103/wkmx-772j |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.D83C2E50 |
| Database: |
BASE |