scholarly journals Charge Order of Strongly Bounded Electron Pairs on the Triangular Lattice: the Zero-Bandwidth Limit of the Extended Hubbard Model with Strong Onsite Attraction

2019 ◽  
Vol 32 (9) ◽  
pp. 2751-2757
Author(s):  
Konrad Jerzy Kapcia
Keyword(s):  
Hubbard Model ◽  
Triangular Lattice ◽  
Charge Order ◽  
Extended Hubbard Model ◽  
Electron Pairs

scholarly journals Charge-order transition in the extended Hubbard model on a two-leg ladder

1999 ◽  
Vol 60 (12) ◽  
pp. R8417-R8421 ◽  
Author(s):  
Matthias Vojta ◽  
R. E. Hetzel ◽  
R. M. Noack
Keyword(s):  
Hubbard Model ◽  
Charge Order ◽  
Order Transition ◽  
Extended Hubbard Model

Exact diagonalization study on the extended Hubbard model in an anisotropic triangular lattice

2008 ◽  
Vol 69 (12) ◽  
pp. 3334-3336 ◽  
Author(s):  
Ken Kanada ◽  
Tsutomu Watanabe ◽  
Seiichiro Onari ◽  
Yukio Tanaka
Keyword(s):  
Hubbard Model ◽  
Triangular Lattice ◽  
Exact Diagonalization ◽  
Extended Hubbard Model

scholarly journals Charge order and antiferromagnetism in the extended Hubbard model

2019 ◽  
Vol 99 (24) ◽  
Author(s):  
Joseph Paki ◽  
Hanna Terletska ◽  
Sergei Iskakov ◽  
Emanuel Gull
Keyword(s):  
Hubbard Model ◽  
Charge Order ◽  
Extended Hubbard Model

scholarly journals The staggered charge-order phase of the extended Hubbard model in the atomic limit

1996 ◽  
Vol 29 (4) ◽  
pp. 733-747 ◽  
Author(s):  
Christian Borgs ◽  
Janusz Jedrzejewski ◽  
Roman Kotecký
Keyword(s):  
Hubbard Model ◽  
Charge Order ◽  
Extended Hubbard Model ◽  
Atomic Limit

scholarly journals SPECTRUM OF LOW-LYING EXCITATIONS IN A SUPERSYMMETRIC EXTENDED HUBBARD MODEL

1994 ◽  
Vol 08 (23) ◽  
pp. 3243-3279 ◽  
Author(s):  
FABIAN H.L. EßLER ◽  
VLADIMIR E. KOREPIN
Keyword(s):  
Hubbard Model ◽  
Excitation Spectrum ◽  
Bound States ◽  
One Dimension ◽  
Zero Temperature ◽  
Extended Hubbard Model ◽  
Local Electron ◽  
Supersymmetric Extension ◽  
Electron Pairs ◽  
Local Electron Pairs

We continue the study of the u(2|2)-supersymmetric extension of the Hubbard model in one dimension. We determine the excitation spectrum at zero temperature even in the sectors where the ground states are u(2|2)-descendants of Bethe states. The excitations include spinons, holons, electrons, localons (local electron pairs, moving coherently through the lattice) and their bound states. The spectra are found to be very different for repulsive and attractive on-site interaction. We also study the thermodynamics of the model.

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