hubbard model
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2022 ◽  
Vol 105 (1) ◽  
Author(s):  
Tong Liu ◽  
Yu-Ran Zhang ◽  
Kai Xu ◽  
Jian Cui ◽  
Heng Fan

Author(s):  
Daria Tolstykh ◽  
Laurent Lemmens ◽  
Stijn De Baerdemacker ◽  
Dimitri Van Neck ◽  
Patrick Bultinck ◽  
...  

2022 ◽  
Vol 64 (2) ◽  
pp. 294
Author(s):  
А.В. Силантьев

Anticommutator Green’s functions and energy spectra of fullerene C80, endohedral fullerenes Lu3N@С80 and Y3N@С80 with the Ih symmetry groups have been obtained in an analytical form within the Hubbard model and static fluctuation approximation. The energy states have been classified using the methods of group theory, and the allowed transitions in the energy spectra of molecules C80, Lu3N@С80 and Y3N@С80have been determined. On the basis of these spectra, an interpretation of experimentally observed optical absorption bands endohedral fullerenes Lu3N@С80 and Y3N@С80.


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