Collective excitations and sum rules for the Hubbard model in the spin-density-wave regime

1992 ◽  
Vol 45 (6) ◽  
pp. 3164-3167 ◽  
Author(s):  
H. Monien ◽  
K. S. Bedell
Keyword(s):  
Hubbard Model ◽  
Spin Density ◽  
Sum Rules ◽  
Density Wave ◽  
Spin Density Wave ◽  
Collective Excitations ◽  
Wave Regime

scholarly journals Superconductivity in the doped Hubbard model and its interplay with next-nearest hopping t′

Science ◽  
2019 ◽  
Vol 365 (6460) ◽  
pp. 1424-1428 ◽  
Author(s):  
Hong-Chen Jiang ◽  
Thomas P. Devereaux
Keyword(s):  
Hubbard Model ◽  
Charge Density ◽  
Spin Density ◽  
Charge Density Wave ◽  
Large Scale ◽  
Nearest Neighbor ◽  
High Temperature Superconductivity ◽  
Density Wave ◽  
Spin Density Wave ◽  
Hole Doping

The Hubbard model is widely believed to contain the essential ingredients of high-temperature superconductivity. However, proving definitively that the model supports superconductivity is challenging. Here, we report a large-scale density matrix renormalization group study of the lightly doped Hubbard model on four-leg cylinders at hole doping concentration δ = 12.5%. We reveal a delicate interplay between superconductivity and charge density wave and spin density wave orders tunable via next-nearest neighbor hopping t′. For finite t′, the ground state is consistent with a Luther-Emery liquid with power-law superconducting and charge density wave correlations associated with half-filled charge stripes. In contrast, for t′ = 0, superconducting correlations fall off exponentially, whereas charge density and spin density modulations are dominant. Our results indicate that a route to robust long-range superconductivity involves destabilizing insulating charge stripes in the doped Hubbard model.

Collective Modes of Incommensurate Spin Density Wave in One-Dimensional Hubbard Model

2001 ◽  
Vol 70 (3) ◽  
pp. 818-828 ◽  
Author(s):  
Masanori Ichioka ◽  
Eiji Kaneshita ◽  
Kazushige Machida
Keyword(s):  
Hubbard Model ◽  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Collective Modes ◽  
One Dimensional

scholarly journals Strong reduction of the Korringa relaxation in the spin-density wave regime ofEuFe2As2observed by electron spin resonance

2010 ◽  
Vol 81 (2) ◽  
Author(s):  
E. Dengler ◽  
J. Deisenhofer ◽  
H.-A. Krug von Nidda ◽  
Seunghyun Khim ◽  
J. S. Kim ◽  
...  
Keyword(s):  
Electron Spin Resonance ◽  
Spin Density ◽  
Electron Spin ◽  
Density Wave ◽  
Spin Density Wave ◽  
Strong Reduction ◽  
Wave Regime ◽  
Spin Resonance

scholarly journals Bond-located spin density wave phase in the two-dimensional (2D) ionic Hubbard model

2010 ◽  
Vol 12 (9) ◽  
pp. 093021 ◽  
Author(s):  
Hui-Min Chen ◽  
Hui Zhao ◽  
Hai-Qing Lin ◽  
Chang-Qin Wu
Keyword(s):  
Hubbard Model ◽  
Spin Density ◽  
Density Wave ◽  
Spin Density Wave ◽  
Two Dimensional ◽  
Wave Phase ◽  
Ionic Hubbard Model
Sign in / Sign up

Export Citation Format

Share Document