Transfer of spectral weight in an exactly solvable model of strongly correlated electrons in infinite dimensions
- 15 September 1992
- journal article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 46 (12) , 7427-7432
- https://doi.org/10.1103/physrevb.46.7427
Abstract
We study the simplest nontrivial model that describes a basic feature of strongly correlated systems, namely, the transfer of spectral weight between high- and low-energy excitations. We use the limit of infinite dimensions to calculate exactly the corresponding single-particle and optical-conductivity spectra. We comment on the relevance of these results to a recently proposed scenario for the breakdown of Fermi-liquid theory in strongly correlated metals.Keywords
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