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, Udo Schwingenschloegl

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

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
Volume67
Issue number2
DOIs
StatePublished - Jul 15 2004

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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