Phonon Effects on Spin-Charge Separation in One Dimension
Strongly Correlated Electrons
2007-05-23 v3
Abstract
Phonon effects on spin-charge separation in one dimension are investigated through the calculation of one-electron spectral functions in terms of the recently developed cluster perturbation theory together with an optimized phonon approach. It is found that the retardation effect due to the finiteness of phonon frequency suppresses the spin-charge separation and eventually makes it invisible in the spectral function. By comparing our results with experimental data of TTF-TCNQ, it is observed that the electron-phonon interaction must be taken into account when interpreting the ARPES data.
Keywords
Cite
@article{arxiv.cond-mat/0511190,
title = {Phonon Effects on Spin-Charge Separation in One Dimension},
author = {W. Q. Ning and Hui Zhao and C. Q. Wu and H. Q. Lin},
journal= {arXiv preprint arXiv:cond-mat/0511190},
year = {2007}
}
Comments
5 pages, 5 figures, minor differences with the published version in Physical Review Letters