Phonon-Mediated Long-Range Attractive Interaction in One-Dimensional Cuprates
Abstract
Establishing a minimal microscopic model for cuprates is a key step towards the elucidation of a high- mechanism. By a quantitative comparison with a recent \emph{in situ} angle-resolved photoemission spectroscopy measurement in doped 1D cuprate chains, our simulation identifies a crucial contribution from long-range electron-phonon coupling beyond standard Hubbard models. Using reasonable ranges of coupling strengths and phonon energies, we obtain a strong attractive interaction between neighboring electrons, whose strength is comparable to experimental observations. Nonlocal couplings play a significant role in the mediation of neighboring interactions. Considering the structural and chemical similarity between 1D and 2D cuprate materials, this minimal model with long-range electron-phonon coupling will provide important new insights on cuprate high- superconductivity and related quantum phases.
Cite
@article{arxiv.2107.05773,
title = {Phonon-Mediated Long-Range Attractive Interaction in One-Dimensional Cuprates},
author = {Yao Wang and Zhuoyu Chen and Tao Shi and Brian Moritz and Zhi-Xun Shen and Thomas P. Devereaux},
journal= {arXiv preprint arXiv:2107.05773},
year = {2021}
}
Comments
6 pages, 4 figures