Weak-coupling phase diagram of the extended Hubbard model with correlated-hopping interaction
GI Japaridze, AP Kampf - Physical Review B, 1999 - APS
A one-dimensional model of interacting electrons with on-site U, nearest-neighbor V, and
correlated-hopping interaction T* is studied at half filling using the continuum-limit field …
correlated-hopping interaction T* is studied at half filling using the continuum-limit field …
Ground-state phase diagram of the one-dimensional half-filled extended Hubbard model
M Tsuchiizu, A Furusaki - Physical Review B, 2004 - APS
We revisit the ground-state phase diagram of the one-dimensional half-filled extended
Hubbard model with on-site (U) and nearest-neighbor (V) repulsive interactions. In the first …
Hubbard model with on-site (U) and nearest-neighbor (V) repulsive interactions. In the first …
Engineering interactions and anyon statistics by multicolor lattice-depth modulations
We show that a multicolor modulation of the depth of an optical lattice allows for a flexible
independent control of correlated hopping, occupation-dependent gauge fields, effective on …
independent control of correlated hopping, occupation-dependent gauge fields, effective on …
Two-fluid coexistence and phase separation in a one-dimensional model with pair hopping and density interactions
We compute the phase diagram of a one-dimensional model of spinless fermions with pair
hopping and nearest-neighbor interaction, first introduced by Ruhman and Altman, using the …
hopping and nearest-neighbor interaction, first introduced by Ruhman and Altman, using the …
Interaction-dependent photon-assisted tunneling in optical lattices: a quantum simulator of strongly-correlated electrons and dynamical gauge fields
A Bermudez, D Porras - New Journal of Physics, 2015 - iopscience.iop.org
We introduce a scheme that combines photon-assisted tunneling (PAT) by a moving optical
lattice with strong Hubbard interactions, and allows for the quantum simulation of …
lattice with strong Hubbard interactions, and allows for the quantum simulation of …
Triplet superconductivity in quasi-one-dimensional systems
AA Aligia, L Arrachea - Physical Review B, 1999 - APS
Abstract We study a Hubbard Hamiltonian, including a quite general nearest-neighbor
interaction, parametrized by repulsion V, exchange interactions J z, J⊥, bond-charge …
interaction, parametrized by repulsion V, exchange interactions J z, J⊥, bond-charge …
Exploring unconventional hubbard models with doubly modulated lattice gases
Recent experiments show that periodic modulations of cold atoms in optical lattices may be
used to engineer and explore interesting models. We show that double modulation …
used to engineer and explore interesting models. We show that double modulation …
Two-fluid coexistence in a spinless fermions chain with pair hopping
We show that a simple one-dimensional model of spinless fermions with pair hopping
displays a phase in which a Luttinger liquid of paired fermions coexists with a Luttinger …
displays a phase in which a Luttinger liquid of paired fermions coexists with a Luttinger …
Phase diagram of the ionic Hubbard model with density-dependent hopping
P Roura-Bas, AA Aligia - Physical Review B, 2023 - APS
We obtain the quantum phase diagram of the ionic Hubbard model including electron-hole
symmetric density-dependent hopping. The boundaries of the phases are determined by …
symmetric density-dependent hopping. The boundaries of the phases are determined by …
Effective one-band models for the one-dimensional cuprate
We consider a multiband Hubbard model H m for Cu and O orbitals in Ba 2− x Sr x CuO 3+ δ
similar to the three-band model for two-dimensional cuprates. The hopping parameters are …
similar to the three-band model for two-dimensional cuprates. The hopping parameters are …