Spectral function and self-energy of the one-dimensional Hubbard model in the U → ∞ limit

Frédéric Mila, K. Penc

Research output: Contribution to journalArticle

Abstract

The interpretation of the k dependent spectral functions of the one-dimensional, infinite U Hubbard model obtained by using the factorized wave-function of Ogata and Shiba is revisited. The well defined feature which appears in addition to low energy features typical of Luttinger liquids, and which, close to the Fermi energy, can be interpreted as the shadow band resulting from 2kF spin fluctuations, is further investigated. A calculation of the self-energy shows that, not too close to the Fermi energy, this feature corresponds to a band, i.e. to a solution of the Dyson equation ω - ∈(k) - Re∑(k, ω) = 0.

Original languageEnglish
Pages (from-to)201-203
Number of pages3
JournalZeitschrift für Physik B Condensed Matter
Volume103
Issue number2
Publication statusPublished - 1997

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Hubbard model
Fermi level
Spin fluctuations
Wave functions
energy
Liquids
wave functions
liquids

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Spectral function and self-energy of the one-dimensional Hubbard model in the U → ∞ limit. / Mila, Frédéric; Penc, K.

In: Zeitschrift für Physik B Condensed Matter, Vol. 103, No. 2, 1997, p. 201-203.

Research output: Contribution to journalArticle

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