Pairing instabilities in the two-dimensional Hubbard model

Andrey V. Chubukov; Jian Ping Lu

doi:10.1103/PhysRevB.46.11163

Pairing instabilities in the two-dimensional Hubbard model

Andrey V. Chubukov, Jian Ping Lu

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

35 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 language	English (US)
Pages (from-to)	11163-11166
Number of pages	4
Journal	Physical Review B
Volume	46
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.46.11163
State	Published - Jan 1 1992

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title = "Pairing instabilities in the two-dimensional Hubbard model",

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.",

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AB - 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.

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Pairing instabilities in the two-dimensional Hubbard model

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