Goldstein, Moshe

Date: Tuesday, June 2, 2015
Time: 14:00
Place: ETH Zurich, Hönggerberg, HIT H 42
Host: Atac Imamoglu

Rabi-Kondo correlated state in a laser-driven quantum dot

Moshe Goldstein
Tel Aviv University, Israel

Spin exchange between a single-electron quantum dot and itinerant electrons leads to the emergence of Kondo correlations. When the quantum dot is driven resonantly by weak laser light, the resulting emission spectrum allows for a direct probe of these correlations. In the opposite limit of vanishing exchange interaction and strong laser drive, the quantum dot exhibits coherent oscillations between the single-spin and optically-excited states. In this talk I will show that the interplay between strong exchange and nonperturbative laser coupling leads to the formation of a new nonequilibrium quantum-correlated state, characterized by the emergence of a laser-induced secondary spin screening cloud, and examine the implications for the emission spectrum.