One-electron singular branch lines of the Hubbard chain

J. M.P. Carmelo*, K. Penc, L. M. Martelo, P. D. Sacramento, J. M.B. Lopes Dos Santos, R. Claessen, M. Sing, U. Schwingenschlögl

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


The momentum and energy dependence of the weight distribution in the vicinity of the one-electron spectral-function singular branch lines of the ID 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 angleresolved photoelectron spectroscopy in the quasi-1D organic conductor TTF-TCNQ.

Original languageEnglish (US)
Pages (from-to)233-239
Number of pages7
JournalEurophysics Letters
Issue number2
StatePublished - Jul 15 2004
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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