scholarly journals Spectral properties near the Mott transition in the two-dimensional Hubbard model with next-nearest-neighbor hopping

2014 ◽  
Vol 90 (3) ◽  
Author(s):  
Masanori Kohno
Keyword(s):  
Hubbard Model ◽  
Spectral Properties ◽  
Nearest Neighbor ◽  
Mott Transition ◽  
Two Dimensional

TWO-DIMENSIONAL QUARTER-FILLED EXTENDED HUBBARD MODEL AT STRONG COUPLING

2005 ◽  
Vol 19 (01n03) ◽  
pp. 213-216
Author(s):  
W. F. LEE ◽  
H. Q. LIN
Keyword(s):  
Hubbard Model ◽  
Correlation Functions ◽  
Nearest Neighbor ◽  
Spin Correlation ◽  
Perturbation Approach ◽  
Effective Hamiltonian ◽  
Two Dimensional ◽  
Extended Hubbard Model ◽  
Neighbor Interaction ◽  
Electron Hopping

In this paper, we generalized the perturbation approach to study the quasi-two-dimension extended Hubbard model. This model is characterizing by intra-chain electron hopping t, on-site Column interaction U, nearest-neighbor interaction V, and inter-chain electron hopping t′ and nearest-neighbor interaction V′. An effective Hamiltonian up to sixth-order in t/U, t/V, t/V′, t′/U, t′/V and t′/V′ expansion was obtained and the spin-spin correlation functions were calculated. We presented results for t=t′, V=V′.

scholarly journals Signatures of the Mott transition in the antiferromagnetic state of the two-dimensional Hubbard model

2017 ◽  
Vol 95 (23) ◽  
Author(s):  
L. Fratino ◽  
P. Sémon ◽  
M. Charlebois ◽  
G. Sordi ◽  
A.-M. S. Tremblay
Keyword(s):  
Hubbard Model ◽  
Mott Transition ◽  
Antiferromagnetic State ◽  
Two Dimensional

Mott Transition in the Two-Dimensional Hubbard Model

2000 ◽  
Vol 217 (2) ◽  
pp. 869-886 ◽  
Author(s):  
A. P�rez-Navarro ◽  
J. Costa-Quintana ◽  
F. L�pez-Aguilar
Keyword(s):  
Hubbard Model ◽  
Mott Transition ◽  
Two Dimensional
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