Theory of time-resolved optical spectroscopy on correlated electron systems

Article

关键词: MEAN-FIELD THEORY;    FALICOV-KIMBALL MODEL;    HUBBARD-MODEL;    INFINITE DIMENSIONS;    QUANTUM KINETICS;    METALS;    CONDUCTIVITY;    TRANSITIONS;    DYNAMICS;    PLASMA;   

DOI  :  10.1103/PhysRevB.78.205119

来源: SCIE

【 摘 要 】

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's 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.

【 授权许可】

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