Thermalization of a pump-excited Mott insulator

Abstract

We use nonequilibrium dynamical mean-field theory in combination with a recently implemented strong-coupling impurity solver to investigate the relaxation of a Mott insulator after a laser excitation with frequency comparable to the Hubbard gap. The time evolution of the double occupancy exhibits a crossover from a strongly damped transient at short times towards an exponential thermalization at long times. In the limit of strong interactions, the thermalization time is consistent with the exponentially small decay rate for artificially created doublons, which was measured in ultracold atomic gases. When the interaction is comparable to the bandwidth, on the other hand, the double occupancy thermalizes within a few times the inverse bandwidth along a rapid thermalization path in which the exponential tail is absent. Similar behavior can be observed in time-resolved photoemission spectroscopy. Our results show that a simple quasi-equilibrium description of the electronic state breaks down for pump-excited Mott insulators characterized by strong interactions.

8 pages, 4 figures

References in corpus (16)

• Quench dynamics and non equilibrium phase diagram of the Bose-Hubbard model
• Interaction Quench in the Hubbard model
• Dynamical phase transition in correlated fermionic lattice systems
• Diagrammatic Monte Carlo simulation of non-equilibrium systems
• Theoretical description of time-resolved photoemission spectroscopy: application to pump-probe experiments
• Time-Dependent Mean Field Theory for Quench Dynamics in correlated electron systems
• Relaxation of antiferromagnetic order in spin-1/2 chains following a quantum quench
• Dielectric breakdown of Mott insulators in dynamical mean-field theory
• Dynamical band flipping in fermionic lattice systems: An ac-field-driven change of the interaction from repulsive to attractive
• Metastable superfluidity of repulsive fermionic atoms in optical lattices
• Quenching Bloch oscillations in a strongly correlated material
• Bandwidth-controlled Mott transition in kappa-(BEDT-TTF)2Cu[N(CN)2]Br{x}Cl{1-x}: Optical studies of correlated carriers
• Polaronic conductivity in the photoinduced phase of 1T-TaS2
• Theory of time-resolved optical spectroscopy on correlated electron systems
• Measuring correlated electron dynamics with time-resolved photoemission spectroscopy
• Optimal ramp shapes for the fermionic Hubbard model in infinite dimensions

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