Pairing instabilities in the two-dimensional Hubbard model

Andrey V. Chubukov, Jian Ping Lu

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

We show that for low and moderate fillings the ground state of the two-dimensional Hubbard model with positive-U and nearest-neighbor hopping is unstable with respect to d-wave pairing with dxy symmetry of the gap wave function: Δ∼sinkxsinky. The inclusion of the next-neighbor hopping may either suppress the pairing or change the symmetry of the superconducting state.

Original languageEnglish (US)
Pages (from-to)11163-11166
Number of pages4
JournalPhysical Review B
Volume46
Issue number17
DOIs
StatePublished - Jan 1 1992

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