Theory of time-resolved optical spectroscopy on correlated electron systems

Abstract

The real-time dynamics of interacting electrons out of equilibrium contains detailed microscopic information about electronically correlated materials, which can be read out with time-resolved optical spectroscopy. The reflectivity that is typically measured in pump-probe experiments is related to the nonequilibrium optical conductivity. We show how to express this quantity in terms of real-time Green functions using dynamical mean-field theory. As an application we study the electrical response of the Falicov-Kimball model during the ultrafast buildup of the gapped phase at large interaction.

9 pages, 3 figures

References in corpus (3)

• Real-time dynamics in Quantum Impurity Systems: A Time-dependent Numerical Renormalization Group Approach
• Nonthermal steady states after an interaction quench in the Falicov-Kimball model
• Quenching Bloch oscillations in a strongly correlated material

Cited by in corpus (4)

• Dynamical phase transition in correlated fermionic lattice systems
• Theoretical description of time-resolved photoemission spectroscopy: application to pump-probe experiments
• Nonequilibrium Steady State of Photoexcited Correlated Electrons in the Presence of Dissipation
• Measuring correlated electron dynamics with time-resolved photoemission spectroscopy