Effective mass divergence in the infinite-U Hubbard model

2006 ◽  
Vol 378-380 ◽  
pp. 323-324 ◽  
Author(s):  
Takashi Koretsune ◽  
Masao Ogata
Keyword(s):  
Hubbard Model ◽  
Effective Mass ◽  
Mass Divergence

Quantum Hall fluid at : Effective mass divergence and BCS instability

1995 ◽  
Vol 212 (3) ◽  
pp. 320-324 ◽  
Author(s):  
G. Baskaran
Keyword(s):  
Effective Mass ◽  
Quantum Hall ◽  
Mass Divergence

scholarly journals Two types of the effective mass divergence and the Grüneisen ratio in heavy-fermion metals

2004 ◽  
Vol 320 (5-6) ◽  
pp. 459-464 ◽  
Author(s):  
M.Ya. Amusia ◽  
A.Z. Msezane ◽  
V.R. Shaginyan
Keyword(s):  
Effective Mass ◽  
Heavy Fermion ◽  
Mass Divergence

scholarly journals GUTZWILLER APPROXIMATION IN DEGENERATE HUBBARD MODELS

1996 ◽  
Vol 10 (27) ◽  
pp. 3717-3725 ◽  
Author(s):  
JIAN PING LU
Keyword(s):  
Hubbard Model ◽  
Effective Mass ◽  
Lattice Site ◽  
Lattice Structure ◽  
Insulator Transition ◽  
Metal Insulator Transition ◽  
Metal Insulator ◽  
Hubbard Models ◽  
Gutzwiller Approximation ◽  
Boson Hubbard Model

The details of the Generalized-Gutzwiller-Approximation in degenerate Hubbard models are presented. It is found that the metal-insulator transition occurs at a finite correlation Uc when the average number of electrons per lattice site is an integer. A derivation is given for the general expression of Uc(x, N) which reproduces all previously known Gutzwiller solutions, including that of the boson Hubbard model. The Uc depends sensitively on both the band degeneracy N and the filling x. Effects of the lattice structure on the metal-insulator transition and the effective mass are discussed.

FERROMAGNETIC PHASE TRANSITIONS IN THE HUBBARD MODEL

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-49-C8-50
Author(s):  
M. D. Coutinho-Filho
Keyword(s):  
Phase Transitions ◽  
Hubbard Model ◽  
Ferromagnetic Phase

Fermion Spectrum Of Bose-Fermi-Hubbard Model In The Phase With Bose-Einstein Condensate

2015 ◽  
Vol 60 (5) ◽  
pp. 443-451 ◽  
Author(s):  
V.O. Krasnov ◽  
Keyword(s):  
Hubbard Model ◽  
Einstein Condensate ◽  
Bose Einstein Condensate ◽  
Bose Einstein

Adiabatic large polarons in anisotropic molecular crystals

2011 ◽  
Vol 35 (1) ◽  
pp. 15-27
Author(s):  
Zoran Ivić ◽  
Željko Pržulj
Keyword(s):  
Energy Transfer ◽  
Effective Mass ◽  
Molecular Crystals ◽  
Single Chain ◽  
Proper Understanding ◽  
One Dimensional ◽  
Interchain Coupling ◽  
Large Polaron ◽  
The One

Adiabatic large polarons in anisotropic molecular crystals We study the large polaron whose motion is confined to a single chain in a system composed of the collection of parallel molecular chains embedded in threedimensional lattice. It is found that the interchain coupling has a significant impact on the large polaron characteristics. In particular, its radius is quite larger while its effective mass is considerably lighter than that estimated within the one-dimensional models. We believe that our findings should be taken into account for the proper understanding of the possible role of large polarons in the charge and energy transfer in quasi-one-dimensional substances.

Quantum Simulation of the Hubbard Model Using Ultra-Cold Atoms

2008 ◽  
Author(s):  
Kenneth M. O'Hara
Keyword(s):  
Hubbard Model ◽  
Cold Atoms ◽  
Quantum Simulation

Three-terminal bistable switches in effective-mass superlattices

1988 ◽  
Vol 24 (1) ◽  
pp. 64-65 ◽  
Author(s):  
A. Aishima ◽  
Y. Fukushima
Keyword(s):  
Effective Mass
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