Excitations in a nearly half-filled Hubbard model with U=

Research output: Contribution to journalArticle

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Abstract

It is shown that, even near half filling, the elementary excitations of the large-U Hubbard model form wide bands of width t, the intersite hopping integral, and that the slave-boson-based mean-field approximation is qualitatively wrong in the relevant limit. This large-U limit has no Kondo-type divergences.

Original languageEnglish (US)
Pages (from-to)723-726
Number of pages4
JournalPhysical Review B
Volume40
Issue number1
DOIs
StatePublished - 1989

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Hubbard model
Bosons
elementary excitations
excitation
divergence
bosons
broadband
approximation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Excitations in a nearly half-filled Hubbard model with U=. / Barnes, Stewart.

In: Physical Review B, Vol. 40, No. 1, 1989, p. 723-726.

Research output: Contribution to journalArticle

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