Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

APS

Two Dimensional Hubbard Model with Off-Diagonal Disorder

R. T. Scalettar, M. Ulmke

Published Mar 1, 1996• 0 citations
OpenAlex

Related papers

Spectral function of two-dimensional disordered Hubbard model

Oinam Nganba Meetei, Nandini Trivedi

Bulletin of the American Physical Society•Mar 2, 2012•0 citations

Off-diagonal disorder in two-dimentional attractive Hubbard model: A Bogoliubov-deGennes study

Sanjeev Kumar, Prabuddha Chakraborty

Bulletin of the American Physical Society•Mar 22, 2013•0 citations

Two-dimensional Hubbard model at low-electron density

修 成清

•Jan 1, 1992•1 citation

Effect of Disorder and Hole-doped on the Antiferromagnetism in The 2D Hubbard Model

Wensheng Liu

In this paper,we investigate the two-dimensional Hubbard model with different disorder strength.Using the exact diagonal method,we self-consistently calculate the effects of disorder on the spatial distribution of the order parameters and density of states at half-filling.We also discuss the effect of disorder on antiferromagnetic phase.Furthermore,we consider the case for adding a hole at half-filling.

Journal of Zhongyuan University of Technology•Jan 1, 2008•0 citations

Two-dimensional Hubbard model in low electron density limit

Osamu Narikiyo, Yasumasa Hasegawa, Hidetoshi Fukuyama

Physica C Superconductivity•Dec 1, 1991•1 citation

Disorder effects on superconducting tendencies in the checkerboard Hubbard model

Peter M. Smith, Malcolm P. Kennett

The question of whether spatially inhomogeneous hopping in the two dimensional Hubbard model can lead to enhancement of superconductivity has been tackled by a number of authors in the context of the checkerboard Hubbard model (CHM). We address the effects of disorder on superconducting properties of the CHM by using exact diagonalization calculations for both potential and hopping disorder. We characterize the superconducting tendencies of the model by focusing on the pair-binding energy, the spin gap, and $d$-wave pairing order parameter. We find that superconducting tendencies, particularly the pair-binding energy, are more robust to disorder when there is inhomogeneous hopping than for the uniform Hubbard model. We also study all possible staggered potentials for an eight-site CHM cluster and relate the behavior of these configurations to the disordered system.

arXiv:1307.5347•Physical Review B•Dec 31, 2013•8 citations
The question of whether spatially inhomogeneous hopping in the two dimensional Hubbard model can lead to enhancement of superconductivity has been tackled by a number of authors in the context of the checkerboard Hubbard model (CHM). We address the effects of disorder on superconducting properties of the CHM by using exact diagonalization calculations for both potential and hopping disorder. We characterize the superconducting tendencies of the model by focusing on the pair-binding energy, the spin gap, and ddd-wave pairing order parameter. We find that superconducting tendencies, particularly the pair-binding energy, are more robust to disorder when there is inhomogeneous hopping than for the uniform Hubbard model. We also study all possible staggered potentials for an eight-site CHM cluster and relate the behavior of these configurations to the disordered system.