Linked-cluster expansion around the atomic limit of the Hubbard model

1991 ◽  
Vol 43 (10) ◽  
pp. 8549-8563 ◽  
Author(s):  
Walter Metzner
Keyword(s):  
Hubbard Model ◽  
Cluster Expansion ◽  
Atomic Limit

Hubbard Model near the Atomic Limit

1970 ◽  
Vol 2 (11) ◽  
pp. 4686-4688 ◽  
Author(s):  
D. M. Esterling
Keyword(s):  
Hubbard Model ◽  
Atomic Limit

Electron spectral density of the half-filled Hubbard model in the atomic limit at finite temperature

Open Physics ◽  
2003 ◽  
Vol 1 (3) ◽  
Author(s):  
Sergei Ovchinnikov ◽  
Elena Shneyder
Keyword(s):  
Low Temperature ◽  
Spectral Density ◽  
Hubbard Model ◽  
Density Wave ◽  
Spin Density Wave ◽  
Long Range Order ◽  
Two Dimensional ◽  
Similar Form ◽  
Atomic Limit ◽  
Ordered State

AbstractWe have calculated the spectral function and density of states of halffilled two-dimensional Hubbard model in the Hubbard-I approximation assuming an antiferromagnetic long range order at low temperature and compared results to the QMC data. It occurs that calculated functions are in a qualitative agreement with the QMC one. We have also shown that Neel ordered state dispersion has the similar form to the spin density wave one.

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
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