Nonequilibrium GW+EDMFT: Antiscreening and inverted populations from nonlocal correlations

Abstract

We study the dynamics of screening in photo-doped Mott insulators with long-ranged interactions using a nonequilibrium implementation of the $GW$ plus extended dynamical mean field theory ($GW$+EDMFT) formalism. Our study demonstrates that the complex interplay of the injected carriers with bosonic degrees of freedom (charge fluctuations) can result in long-lived transient states with properties that are distinctly different from those of thermal equilibrium states. Systems with strong nonlocal interactions are found to exhibit a self-sustained population inversion of the doublons and holes. This population inversion leads to low-energy antiscreening which can be detected in time-resolved electron-energy loss spectra.

References in corpus (11)

• Theoretical description of time-resolved photoemission spectroscopy: application to pump-probe experiments
• Disentangling the electronic and phononic glue in a high-Tc superconductor
• Screening and Non-local Correlations in the Extended Hubbard Model from Self-Consistent Combined GW and Dynamical Mean Field Theory
• Nonequilibrium Steady State of Photoexcited Correlated Electrons in the Presence of Dissipation
• Snapshots of the retarded interaction of charge carriers with ultrafast fluctuations in cuprates
• Extended dynamical mean-field study of the Hubbard model with long range interactions
• Relaxation dynamics of the Holstein polaron
• Theory of time-resolved optical spectroscopy on correlated electron systems
• Real-time decay of a highly excited charge carrier in the one-dimensional Holstein model
• Role of impact ionization in the thermalization of photo-excited Mott insulators
• Time-domain pumping a quantum-critical charge-density-wave-ordered material

Cited by in corpus (34)

• Multitier self-consistent $GW$+EDMFT
• Consistent partial bosonization of the extended Hubbard model
• Influence of Fock exchange in combined many-body perturbation and dynamical mean field theory
• Low rank compression in the numerical solution of the nonequilibrium Dyson equation
• Multi-band non-equilibrium GW+EDMFT formalism for correlated insulators
• Entropy-cooled nonequilibrium states of the Hubbard model
• Truncating the memory time in nonequilibrium DMFT calculations
• The dynamically screened ladder approximation: Simultaneous treatment of strong electronic correlations and dynamical screening out of equilibrium
• Dynamics of photo-doped charge transfer insulators
• Quantum Boltzmann equation for strongly correlated systems: comparison to dynamical mean field theory
• Time-linear quantum transport simulations with correlated nonequilibrium Green's functions
• Tracing the nonequilibrium topological state of Chern insulators
• Hund's coupling driven photo-carrier relaxation in the two-band Mott insulator
• Photo-induced nonequilibrium states in Mott insulators
• Memory truncated Kadanoff-Baym equations
• Photo-enhanced excitonic correlations in a Mott insulator with nonlocal interactions
• Photoinduced absorptions inside the Mott gap in the two-dimensional extended Hubbard model
• Nonequilibrium Two-Particle Self-Consistent Approach
• Bandwidth renormalization due to the intersite Coulomb interaction
• Photo-induced charge dynamics in 1$T$-TaS${}_2$
• Nonequilibrium susceptibility in photoinduced Floquet states
• Ultrafast Laser Driven Many-Body Dynamics and Kondo Coherence Collapse
• Nonlocal Coulomb interaction and spin-freezing crossover as a route to valence-skipping charge order
• Photo-induced charge-transfer renormalization in NiO
• Effects of frustration on the nonequilibrium dynamics of photo-excited lattice systems
• Causal versus local $GW$+EDMFT scheme and application to the triangular-lattice extended Hubbard model
• Nature of the photo-induced metallic state in monoclinic VO${}_2$
• Memory-Efficient Nonequilibrium Green's Function Framework Built On Quantics Tensor Trains
• Interpreting pulse-shape effects in pump-probe spectroscopies
• Electron-magnon dynamics triggered by an ultrashort laser pulse: A real-time Dual $GW$ study
• The perils of minimal coupling to electromagnetic field in quantum many-body systems
• Photo-excited states in correlated band insulators
• Superconducting optical response of photodoped Mott insulators
• Measuring the ultrafast screening of $U$ in photo-excited charge-transfer insulators with time-resolved X-ray absorption spectroscopy