scholarly journals Coulomb interaction at the superconductor-to-Mott-insulator transition

1998 ◽  
Vol 58 (14) ◽  
pp. 9450-9459 ◽  
Author(s):  
Jinwu Ye
Keyword(s):  
Coulomb Interaction ◽  
Mott Insulator ◽  
Insulator Transition

scholarly journals Structural superfluid–Mott-insulator transition for a Bose gas in multirods

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Omar Abel Rodríguez-López ◽  
M. A. Solís ◽  
J. Boronat
Keyword(s):  
Mott Insulator ◽  
Bose Gas ◽  
Insulator Transition

scholarly journals Band-insulator–metal–Mott-insulator transition in the half-filledt−t′ionic Hubbard chain

2007 ◽  
Vol 75 (24) ◽  
Author(s):  
G. I. Japaridze ◽  
R. Hayn ◽  
P. Lombardo ◽  
E. Müller-Hartmann
Keyword(s):  
Mott Insulator ◽  
Insulator Transition ◽  
Band Insulator

scholarly journals The analytical description of a doped Mott insulator

2019 ◽  
Vol 33 (29) ◽  
pp. 1950355
Author(s):  
Yu-Liang Liu
Keyword(s):  
Green’S Function ◽  
Coulomb Interaction ◽  
Green's Function ◽  
Doping Concentration ◽  
Cuprate Superconductors ◽  
Mott Insulator ◽  
Spin Fluctuations ◽  
Hole Doping ◽  
Charge Fluctuation ◽  
Doped Mott Insulator

With the hierarchical Green’s function approach, we study a doped Mott insulator described with the Hubbard model by analytically solving the equations of motion of an one-particle Green’s function and related multiple-point correlation functions, and find that the separation of the spin and charge degrees of freedom of the electrons is an intrinsic character of the doped Mott insulator. For enough of large on-site repulsive Coulomb interaction, we show that the spectral weight of the one-particle Green’s function is proportional to the hole doping concentration that is mainly produced by the charge fluctuation of electrons, while the excitation spectrum of the electrons is composed of two parts: One is contributed by the spin fluctuation of the electrons, which is proportional to the hole doping concentration, and another one is coming from the coupling between the charge and spin fluctuations of the electrons that takes the maximum at undoping. All of these low energy/temperature physical properties originate from the strong on-site Coulomb interaction. The present results are consistent with the spectroscopy observations of the cuprate superconductors and the numerical calculations in normal state above the pseudogap regime.

scholarly journals Rashba-metal to Mott-insulator transition

2020 ◽  
Vol 101 (23) ◽  
Author(s):  
Valentina Brosco ◽  
Massimo Capone
Keyword(s):  
Mott Insulator ◽  
Insulator Transition
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