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 …

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 …

Engineering interactions and anyon statistics by multicolor lattice-depth modulations

L Cardarelli, S Greschner, L Santos - Physical Review A, 2016 - APS
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 …

Two-fluid coexistence and phase separation in a one-dimensional model with pair hopping and density interactions

L Gotta, L Mazza, P Simon, G Roux - Physical Review B, 2021 - APS
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 …

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 …

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 …

Exploring unconventional hubbard models with doubly modulated lattice gases

S Greschner, L Santos, D Poletti - Physical Review Letters, 2014 - APS
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 …

Two-fluid coexistence in a spinless fermions chain with pair hopping

L Gotta, L Mazza, P Simon, G Roux - Physical Review Letters, 2021 - APS
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 …

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 …

Effective one-band models for the one-dimensional cuprate

AE Feiguin, C Helman, AA Aligia - Physical Review B, 2023 - APS
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 …