Change of electronic structures with hole doping in strongly correlated electron systems: titanium oxides

1993 ◽  
Vol 186-188 ◽  
pp. 992-994 ◽  
Author(s):  
Y. Tokura ◽  
Y. Taguchi ◽  
Y. Okada ◽  
T. Katsufuji ◽  
T. Arima ◽  
...  
Keyword(s):  
Electronic Structures ◽  
Hole Doping ◽  
Strongly Correlated Electron Systems ◽  
Strongly Correlated ◽  
Titanium Oxides ◽  
Electron Systems ◽  
Strongly Correlated Electron ◽  
Correlated Electron Systems ◽  
Correlated Electron

EXACTNESS OF FERMIONIC LINEARIZATION SCHEME WITH CLIFFORD VARIABLES IN d=∞

1995 ◽  
Vol 09 (16) ◽  
pp. 971-975 ◽  
Author(s):  
ARIANNA MONTORSI
Keyword(s):  
Exact Solution ◽  
Single Site ◽  
Strongly Correlated Electron Systems ◽  
Strongly Correlated ◽  
Electron Systems ◽  
Strongly Correlated Electron ◽  
Correlated Electron Systems ◽  
Correlated Electron

We show that the fermionic linearization scheme for dealing with strongly correlated electron systems — when implemented with Clifford variables — becomes exact in the d=∞ limit, at least for Hubbard-like models. In this case, the model is mapped exactly into a single-site problem. The conditions under which such a feature allows to obtain an exact solution are also discussed.

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