Topological FCQPT in Strongly Correlated Fermi Systems

2020 ◽  
pp. 89-114
Author(s):  
Miron Amusia ◽  
Vasily Shaginyan
Keyword(s):  
Strongly Correlated ◽  
Fermi Systems

scholarly journals Flat bands and strongly correlated Fermi systems

2019 ◽  
Vol 94 (6) ◽  
pp. 065801 ◽  
Author(s):  
V R Shaginyan ◽  
A Z Msezane ◽  
V A Stephanovich ◽  
G S Japaridze ◽  
E V Kirichenko
Keyword(s):  
Strongly Correlated ◽  
Fermi Systems ◽  
Flat Bands

Unified Slave Boson Representation of Spin and Charge Degrees of Freedom for Strongly Correlated Fermi Systems

1992 ◽  
Vol 06 (05n06) ◽  
pp. 685-704 ◽  
Author(s):  
R. Frésard ◽  
P. Wölfle
Keyword(s):  
Hubbard Model ◽  
Degrees Of Freedom ◽  
Strongly Correlated ◽  
Occupied Site ◽  
Fermi Systems ◽  
Detailed Derivation ◽  
Boson Representation

We consider a slave boson representation of lattice electrons in terms of bosons for the empty, singly and doubly occupied site. The approach generalizes an earlier formulation by Kotliar and Ruckenstein. As examples the Hubbard model and the t-J model are considered. The emphasis is on a detailed derivation and discussion of the formal aspects. Simple meanfield solutions are discussed for illustrative purposes.

scholarly journals Strongly correlated Fermi systems as a new state of matter

2016 ◽  
Vol 11 (5) ◽  
Author(s):  
V. R. Shaginyan ◽  
A. Z. Msezane ◽  
G. S. Japaridze ◽  
K. G. Popov ◽  
V. A. Khodel
Keyword(s):  
Strongly Correlated ◽  
Fermi Systems ◽  
State Of Matter ◽  
New State Of Matter
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