Dielectric breakdown of Mott insulators -- doublon production and doublon heating
arXiv:1211.2698 · doi:10.1088/1742-6596/427/1/012005
Abstract
Using dynamical mean-field theory and the non-crossing approximation as impurity solver, we study the response of a Mott insulator to strong dc electric fields. The breakdown of the Mott insulating state is triggered by field-induced creation of doublon-hole pairs. In a previous investigation, Ref. [1], it was found that the system approaches a long-lived quasi-steady state in which the current is time-independent although the number of carriers constantly increases. Here we investigate and clarify the nature of this state, which exists only because thermalization is slow in the Hubbard model at strong coupling. The current is time-independent because doublons and holes have an infinite temperature distribution. Evidence for this fact is obtained from spectral functions and by comparing the electric current with the field-induced doublon-hole creation rate. Implications to real experiments, in systems with energy dissipation, are discussed.
References in corpus (21)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Quench dynamics and non equilibrium phase diagram of the Bose-Hubbard model
- Dynamical phase transition in correlated fermionic lattice systems
- Theoretical description of time-resolved photoemission spectroscopy: application to pump-probe experiments
- Mott insulators in strong electric fields
- Nonequilibrium Steady State of Photoexcited Correlated Electrons in the Presence of Dissipation
- Metastable superfluidity of repulsive fermionic atoms in optical lattices
- Quenching Bloch oscillations in a strongly correlated material
- Photo-induced states in a Mott insulator
- Quantum liquid of repulsively bound pairs of particles in a lattice
- Non-equilibrium electronic transport in a one-dimensional Mott insulator
- Nonthermal symmetry broken states in the strongly interacting Hubbard model
- Nonequilibrium dynamics of the Holstein polaron driven by external electric field
- Metal nanofilm in strong ultrafast optical fields
- Nonequilibrium quantum dynamics of a charge carrier doped into a Mott insulator
- Electrical Breakdown in a V2O3 device at the Insulator to Metal Transition
- Measuring correlated electron dynamics with time-resolved photoemission spectroscopy
- Nonlinear current response of an isolated system of interacting fermions
- Solution of electric-field-driven tight-binding lattice in contact with fermion reservoir
- Optical conductivity in the t-J-Holstein Model
- Quasi-universal transient behavior of a nonequilibrium Mott insulator driven by an electric field
Cited by in corpus (19)
- Nonequilibrium dynamical mean-field theory and its applications
- Tunneling Breakdown of a Strongly Correlated Insulating State in VO Induced by Intense Multi-Terahertz Excitation
- Interaction quench in the Holstein model: Thermalization crossover from electron- to phonon-dominated relaxation
- Field-induced polaron formation in the Holstein-Hubbard model
- Nonequilibrium steady states of electric-field driven Mott insulators
- Floquet prethermalization in the resonantly driven Hubbard model
- Nonequilibrium steady states of the electric-field-driven Mott insulator: Thermalization, emergent Wannier-Stark ladder, and dielectric breakdown
- Nonequilibrium dynamical mean field simulation of inhomogeneous systems
- Electronic transport and dynamics in correlated heterostructures
- Doublon formation by ions impacting a strongly correlated finite lattice system
- Photo-induced nonequilibrium states in Mott insulators
- Mott-insulator state of cold atoms in tilted optical lattices: doublon dynamics and multi-level Landau-Zener tunneling
- Dynamically induced doublon repulsion in the Fermi-Hubbard model probed by a single-particle density of states
- Wannier-Stark ladders and Stark shifts of excitons in Mott insulators
- Correlated Mott insulators in a strong electric field: The effects of phonon renormalization
- Phases of translation-invariant systems out of equilibrium: Iterative Green's function techniques and renormalization group approaches
- Superconductor-like effects in an AC driven normal Mott-insulating quantum dot array
- Iterated Perturbation Theory for Mott Insulators in a Static Electric Field with Optical Phonons
- DC electric field driven discretization of single-particle excitation spectra in a Mott insulator