One-Electron Singular Branch Lines of the Hubbard Chain

Details One-Electron Singular Branch Lines of the Hubbard Chain One-Electron Singular Branch Lines of the Hubbard Chain

2004-04-26

arxiv.org/abs/cond-mat/0404618v2

Physics

Condensed Matter

Strongly Correlated Electrons

Replaced with shortened version; 4 figures

Scientific paper

10.1209/epl/i2004-10111-0

The momentum and energy dependence of the weight distribution in the vicinity of the one-electron spectral-function singular branch lines of the 1D Hubbard model is studied for all values of the electronic density and on-site repulsion $U$. To achieve this goal we use the recently introduced pseudofermion dynamical theory. Our predictions agree quantitatively for the whole momentum and energy bandwidth with the peak dispersions observed by angle-resolved photoelectron spectroscopy in the quasi-1D organic conductor TTF-TCNQ.

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