Impact of disorder and phonons on the Hubbard bands of Mott insulators in strong electric fields

TM Mazzocchi, D Werner, E Arrigoni - Physical Review B, 2024 - APS
We characterize the current-carrying nonequilibrium steady state (NESS) in a single-band
Hubbard model confronted with a static electric field in the presence of quenched disorder …

Correlated Mott insulators in a strong electric field: The effects of phonon renormalization

TM Mazzocchi, D Werner, P Gazzaneo, E Arrigoni - Physical Review B, 2023 - APS
We characterize the response of a Mott insulating system to a static electric field in terms of
its conducting and spectral properties. Dissipation is included by a coupling to fermionic …

Site-selective doublon-holon dynamics in a pumped one-dimensional Hubbard superlattice with staggered Coulomb interactions

Z Cheng, Y Li, H Lu, X Hu, Z Huang, GA Fiete, L Du - Physical Review B, 2024 - APS
Doublon-holon dynamics is investigated in a pumped one-dimensional Hubbard model with
a staggered on-site Coulomb interaction at half-filling. When the system parameters are set …

Photodriven Mott insulating heterostructures: A steady-state study of impact ionization processes

P Gazzaneo, D Werner, TM Mazzocchi, E Arrigoni - Physical Review B, 2024 - APS
We investigate the photocurrent and spectral features in a simplified model of a Mott
photovoltaic system consisting of a multilayered insulating heterostructure. The central …

Photo-induced nonequilibrium states in Mott insulators

Y Murakami, D Golež, M Eckstein, P Werner - arXiv preprint arXiv …, 2023 - arxiv.org
The study of nonequilibrium phenomena in interacting lattice systems can provide new
perspectives on correlation effects, and information on metastable states of matter. Mott …

A new pathway to impact ionization in a photo-excited one-dimensional ionic Hubbard model

Z Cheng, L Yang, X Hu, H Lu, Z Huang, L Du - arXiv preprint arXiv …, 2024 - arxiv.org
Using the time-dependent Lanczos method, we study the non-equilibrium dynamics of the
half-filled one-dimensional ionic Hubbard model, deep within the Mott insulating regime …

Iterated Perturbation Theory for Mott Insulators in a Static Electric Field with Optical Phonons

TM Mazzocchi, E Arrigoni - physica status solidi (b), 2024 - Wiley Online Library
This article aims to compare the so‐called iterated perturbation theory (IPT) and auxiliary
master equation approach (AMEA) impurity solvers for a Mott insulating system driven out of …

Phonon effects, impact ionization and power conversion in Mott photovoltaic systems

P Gazzaneo, E Arrigoni - arXiv preprint arXiv:2408.14822, 2024 - arxiv.org
We analyze the effect of acoustic phonons on the photocurrent and the spectral
characteristics of a simplified photovoltaic setup made of Mott insulating layers between two …

Disordered Mott insulators in strong electric fields

TM Mazzocchi, D Werner, E Arrigoni - arXiv preprint arXiv:2310.11833, 2023 - arxiv.org
We characterize the current-carrying nonequilibrium steady-state in a single-band Hubbard
model confronted with a static electric field in the presence of quenched disorder. As …