Pseudogap effects induced by resonant pair scattering
Superconductivity
2016-08-31 v1 Strongly Correlated Electrons
Abstract
We demonstrate how resonant pair scattering of correlated electrons above T_c can give rise to pseudogap behavior. This resonance in the scattering T-matrix appears for superconducting interactions of intermediate strength, within the framework of a simple fermionic model. It is associated with a splitting of the single peak in the spectral function into a pair of peaks separated by an energy gap. Our physical picture is contrasted with that derived from other T-matrix schemes, with superconducting fluctuation effects, and with preformed pair (boson-fermion) models. Implications for photoemission and tunneling experiments in the cuprates are discussed.
Cite
@article{arxiv.cond-mat/9705144,
title = {Pseudogap effects induced by resonant pair scattering},
author = {Boldizsar Janko and Jiri Maly and K. Levin},
journal= {arXiv preprint arXiv:cond-mat/9705144},
year = {2016}
}
Comments
REVTeX3.0; 4 pages, 4 EPS figures (included)