scholarly journals Extended Bose-Hubbard models with Rydberg macrodimer dressing

2021 ◽  
Vol 104 (5) ◽  
Author(s):  
Mathieu Barbier ◽  
Simon Hollerith ◽  
Walter Hofstetter
Keyword(s):  
Hubbard Models

scholarly journals Erratum: Z2 characterization for three-dimensional multiband Hubbard models [Phys. Rev. Research 2 , 013299 (2020)]

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Bernhard Irsigler ◽  
Jun-Hui Zheng ◽  
Fabian Grusdt ◽  
Walter Hofstetter
Keyword(s):  
Three Dimensional ◽  
Hubbard Models

scholarly journals Integrable extended Hubbard models with boundary Kondo impurities

2001 ◽  
Vol 64 (3) ◽  
pp. 445-467
Author(s):  
Anthony J. Bracken ◽  
Xiang-Yu Ge ◽  
Mark D. Gould ◽  
Huan-Qiang Zhou
Keyword(s):  
Hilbert Space ◽  
Bethe Ansatz ◽  
Inverse Scattering ◽  
Magnetic Moments ◽  
Inverse Scattering Method ◽  
Scattering Method ◽  
Ansatz Method ◽  
One Dimensional ◽  
Hubbard Models ◽  
Kondo Impurities

Three kinds of integrable Kondo impurity additions to one-dimensional q-deformed extended Hubbard models are studied by means of the boundary Z2-graded quantum inverse scattering method. The boundary K matrices depending on the local magnetic moments of the impurities are presented as nontrivial realisations of the reflection equation algebras in an impurity Hilbert space. The models are solved by using the algebraic Bethe ansatz method, and the Bethe ansatz equations are obtained.

scholarly journals Ferromagnetism in multiband Hubbard models: From weak to strong Coulomb repulsion

1996 ◽  
Vol 54 (6) ◽  
pp. 4056-4067 ◽  
Author(s):  
Karlo Penc ◽  
Hiroyuki Shiba ◽  
Frédéric Mila ◽  
Takuya Tsukagoshi
Keyword(s):  
Coulomb Repulsion ◽  
Hubbard Models ◽  
Strong Coulomb

scholarly journals Quantum simulations of extended Hubbard models with dipolar crystals

2009 ◽  
Vol 11 (5) ◽  
pp. 055045 ◽  
Author(s):  
M Ortner ◽  
A Micheli ◽  
G Pupillo ◽  
P Zoller
Keyword(s):  
Hubbard Models ◽  
Quantum Simulations

scholarly journals Off-Diagonal Long-Range Order in Generalized Hubbard Models

1997 ◽  
Vol 11 (11) ◽  
pp. 1311-1335 ◽  
Author(s):  
Kristel Michielsen ◽  
Hans De Raedt
Keyword(s):  
Density Matrix ◽  
Hubbard Model ◽  
Long Range ◽  
Ground State ◽  
Size Dependence ◽  
State Energy ◽  
System Size ◽  
Range Order ◽  
Long Range Order ◽  
Hubbard Models

We present stochastic diagonalization results for the ground-state energy and the largest eigenvalue of the two-fermion density matrix of the BCS reduced Hamiltonian, the Hubbard model, and the Hubbard model with correlated hopping. The system-size dependence of this eigenvalue is used to study the existence of Off-Diagonal Long-Range Order in these models. We show that the model with correlated hopping and repulsive on-site interaction can exhibit Off-Diagonal Long-Range Order. Analytical results for some special limiting cases indicate that Off-Diagonal Long-Range Order not always implies superconductivity.

Numerical simulations: some results for the 2- and 3-D Hubbard models and a 2-D electron phonon model

1989 ◽  
Vol T27 ◽  
pp. 101-106 ◽  
Author(s):  
D J Scalapino ◽  
R L Sugar ◽  
S R White ◽  
N E Bickers ◽  
R T Scalettar
Keyword(s):  
Numerical Simulations ◽  
Hubbard Models ◽  
Phonon Model
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