scholarly journals Dynamical Mean-Field Study of Excitonic Phase in the Spinless Two-Band Hubbard Model for Electron–Hole System

Author(s):  
Kento Sasaki ◽  
Takemi Yamada ◽  
Kaoru Domon ◽  
Yoshiaki Ōno



2009 ◽  
Vol 145 ◽  
pp. 012013 ◽  
Author(s):  
Masafumi Udagawa ◽  
Yukitoshi Motome
Keyword(s):  


2016 ◽  
Vol 93 (11) ◽  
Author(s):  
V. S. Arun ◽  
R. Sohal ◽  
C. Hickey ◽  
A. Paramekanti
Keyword(s):  




2010 ◽  
Vol 79 (1) ◽  
pp. 014713 ◽  
Author(s):  
Tomoko Kita ◽  
Takuma Ohashi ◽  
Sei-ichiro Suga
Keyword(s):  


1997 ◽  
Vol 11 (06) ◽  
pp. 729-751 ◽  
Author(s):  
Henrik Kajueter ◽  
Gabriel Kotliar

We investigate the Mott transition in infinite dimensions in the orbitally degenerate Hubbard model. We find that the qualitative features of the Mott transition found in the one-band model are also present in the orbitally degenerate case. Surprisingly, the quantitative aspects of the density driven Mott transition around density one are not very sensitive to orbital degeneracy, justifying the quantitative success of the one-band model which was previously applied to orbitally degenerate systems. We contrast this with quantities that have a sizeable dependence on the orbital degeneracy and comment on the role of the intra-atomic exchange J.



2008 ◽  
Vol 77 (5) ◽  
Author(s):  
Yun Song ◽  
R. Wortis ◽  
W. A. Atkinson


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