scholarly journals Four-band extended Hubbard Hamiltonian for the one-dimensional cuprateSr2CuO3:Distribution of oxygen holes and its relation to strong intersite Coulomb interaction

2000 ◽  
Vol 62 (16) ◽  
pp. 10752-10765 ◽  
Author(s):  
R. Neudert ◽  
S.-L. Drechsler ◽  
J. Málek ◽  
H. Rosner ◽  
M. Kielwein ◽  
...  
Keyword(s):  
Coulomb Interaction ◽  
One Dimensional ◽  
Hubbard Hamiltonian ◽  
The One ◽  
Intersite Coulomb Interaction ◽  
Extended Hubbard Hamiltonian

Quantum Monte Carlo study of the one-dimensional extended Hubbard Hamiltonian

1991 ◽  
Vol 43 (1-2) ◽  
pp. 3531-3534 ◽  
Author(s):  
W.R Somsky ◽  
D.K Campbell ◽  
H.-Q Lin ◽  
X Wang ◽  
J.E Gubernatis
Keyword(s):  
Monte Carlo ◽  
Quantum Monte Carlo ◽  
Monte Carlo Study ◽  
One Dimensional ◽  
Hubbard Hamiltonian ◽  
The One ◽  
Extended Hubbard Hamiltonian

scholarly journals Time evolution of the one-dimensional Jaynes-Cummings-Hubbard Hamiltonian

2009 ◽  
Vol 80 (4) ◽  
Author(s):  
M. I. Makin ◽  
Jared H. Cole ◽  
Charles D. Hill ◽  
Andrew D. Greentree ◽  
Lloyd C. L. Hollenberg
Keyword(s):  
Time Evolution ◽  
One Dimensional ◽  
Hubbard Hamiltonian ◽  
The One

scholarly journals PHASE TRANSITIONS INDUCED BY CORRELATED HOPPING IN THE FALICOV–KIMBALL MODEL

2004 ◽  
Vol 18 (03) ◽  
pp. 357-368 ◽  
Author(s):  
HANA ČENČARIKOVÁ ◽  
PAVOL FARKAŠOVSKÝ
Keyword(s):  
Phase Transitions ◽  
Coulomb Interaction ◽  
Ground State ◽  
Strong Interactions ◽  
Correlated Electrons ◽  
Correct Description ◽  
One Dimensional ◽  
Cluster Calculations ◽  
Ground State Properties ◽  
The One

The extrapolation of finite-cluster calculations is used to examine ground-state properties of the one-dimensional Falicov–Kimball model with correlated hopping. It is shown that the correlated hopping strongly influences both the valence transitions and the conducting properties of the model and so it should not be neglected in the correct description of materials with correlated electrons. This is illustrated for two selected values of the Coulomb interaction that represent typical behavior of the model for small and intermediate (strong) interactions. In both cases the insulator–metal transitions (accompanied by continuous or discontinuous valence transitions) induced by correlated hopping are observed.

On the SU(2)×SU(2) symmetry in the Hubbard model

Open Physics ◽  
2012 ◽  
Vol 10 (4) ◽  
Author(s):  
Dorota Jakubczyk ◽  
Paweł Jakubczyk
Keyword(s):  
Hubbard Model ◽  
Spin Chain ◽  
Fourier Transforms ◽  
Exact Diagonalization ◽  
Unitary Groups ◽  
Conserved Quantities ◽  
One Dimensional ◽  
Hubbard Hamiltonian ◽  
Quantum Numbers ◽  
The One

AbstractWe discuss the one-dimensional Hubbard model, on finite sites spin chain, in context of the action of the direct product of two unitary groups SU(2)×SU(2). The symmetry revealed by this group is applicable in the procedure of exact diagonalization of the Hubbard Hamiltonian. This result combined with the translational symmetry, given as the basis of wavelets of the appropriate Fourier transforms, provides, besides the energy, additional conserved quantities, which are presented in the case of a half-filled, four sites spin chain. Since we are dealing with four elementary excitations, two quasiparticles called “spinons”, which carry spin, and two other called “holon” and “antyholon”, which carry charge, the usual spin-SU(2) algebra for spinons and the so called pseudospin-SU(2) algebra for holons and antiholons, provide four additional quantum numbers.

scholarly journals Spin and charge gaps in the one-dimensional Kondo-lattice model with Coulomb interaction between conduction electrons

1996 ◽  
Vol 53 (14) ◽  
pp. R8828-R8831 ◽  
Author(s):  
Naokazu Shibata ◽  
Tomotoshi Nishino ◽  
Kazuo Ueda ◽  
Chikara Ishii
Keyword(s):  
Coulomb Interaction ◽  
Lattice Model ◽  
Kondo Lattice ◽  
One Dimensional ◽  
Conduction Electrons ◽  
Kondo Lattice Model ◽  
The One

scholarly journals In-gap band in the one-dimensional two-orbital Kanamori-Hubbard model with interorbital Coulomb interaction

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
N. Aucar Boidi ◽  
H. Fernández García ◽  
Y. Núñez-Fernández ◽  
K. Hallberg
Keyword(s):  
Hubbard Model ◽  
Coulomb Interaction ◽  
One Dimensional ◽  
The One

scholarly journals On Strongly Correlated Eelectrons in Metals

2021 ◽  
Author(s):  
Jacob Szeftel
Keyword(s):  
Spatial Dimension ◽  
Strongly Correlated ◽  
Electron Band ◽  
One Dimensional ◽  
Hubbard Hamiltonian ◽  
Correlated Electron ◽  
Normal Metals ◽  
Interacting Electrons ◽  
The One ◽  
Groundstate Energy

A procedure, dedicated to superconductivity, is extended to study the properties of interacting electrons in normal metals in the thermodynamic limit. Each independent-electron band is shown to split into two correlated-electron bands. Excellent agreement is achieved with Bethe's wave-function for the one-dimensional Hubbard model. The groundstate energy, reckoned for the two-dimensional Hubbard Hamiltonian, is found to be lower than values, obtained thanks to the numerical methods. This analysis applies for any spatial dimension and temperature.

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