Simulations of the three-dimensional Hubbard model: Half-filled band sector

1987 ◽  
Vol 35 (4) ◽  
pp. 1851-1859 ◽  
Author(s):  
J. E. Hirsch
Keyword(s):  
Hubbard Model ◽  
Three Dimensional

scholarly journals Spectral properties of the three-dimensional Hubbard model

2011 ◽  
Vol 83 (23) ◽  
Author(s):  
Sebastian Fuchs ◽  
Emanuel Gull ◽  
Matthias Troyer ◽  
Mark Jarrell ◽  
Thomas Pruschke
Keyword(s):  
Hubbard Model ◽  
Spectral Properties ◽  
Three Dimensional

scholarly journals One-particle spectral weight of the three-dimensional single-band Hubbard model

1996 ◽  
Vol 54 (23) ◽  
pp. 16523-16532 ◽  
Author(s):  
M. Ulmke ◽  
R. T. Scalettar ◽  
A. Nazarenko ◽  
E. Dagotto
Keyword(s):  
Hubbard Model ◽  
Three Dimensional ◽  
Spectral Weight ◽  
Single Band

REENTRANT CHARGE ORDERING BEHAVIOUR IN THE EXTENDED HUBBARD MODEL

2001 ◽  
Vol 15 (26) ◽  
pp. 1217-1224 ◽  
Author(s):  
ANH TUAN HOANG
Keyword(s):  
Hubbard Model ◽  
Three Dimensional ◽  
Charge Ordering ◽  
Coherent Potential Approximation ◽  
Coulomb Energy ◽  
Extended Hubbard Model ◽  
Potential Approximation ◽  
Ordering Transition

We study the charge ordering behavior in a three-dimensional extended Hubbard model using the Coherent potential approximation (CPA). It is shown that the charge ordering transition occurs due to the competition between kinetic and Coulomb energy. At various band fillings a simple reentrant behavior of the charge ordering transition is found.

EFFECTS OF THE NEXT-NEAREST-NEIGHBOR HOPPING IN OPTICAL LATTICES

2008 ◽  
Vol 22 (01) ◽  
pp. 33-44 ◽  
Author(s):  
YUN'E GAO ◽  
FUXIANG HAN
Keyword(s):  
Phase Diagram ◽  
Hubbard Model ◽  
Ground State Energy ◽  
Ground State ◽  
Optical Lattices ◽  
State Energy ◽  
Nearest Neighbor ◽  
Three Dimensional ◽  
Dispersion Relations ◽  
Insulating Phase

Introducing the next-nearest-neighbor hopping t′ into the Bose–Hubbard model, we study its effects on the phase diagram, on the ground-state energy, and on the quasiparticle and quasihole dispersion relations of the Mott insulating phase in optical lattices. We have found that a negative value of t′ enlarges the Mott-insulating region on the phase diagram, while a positive value of t′ acts oppositely. We have also found that the effects of t′ are dependent on the dimensionality of optical lattices with its effects largest in three-dimensional optical lattices.

scholarly journals Disorder-controlled relaxation in a three-dimensional Hubbard model quantum simulator

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
W. Morong ◽  
S. R. Muleady ◽  
I. Kimchi ◽  
W. Xu ◽  
R. M. Nandkishore ◽  
...  
Keyword(s):  
Hubbard Model ◽  
Three Dimensional ◽  
Quantum Simulator
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