Proposed rabi-kondo correlated state in a laser-driven semiconductor quantum dot

B. Sbierski*, M. Hanl, A. Weichselbaum, H. E. Türeci, M. Goldstein, L. I. Glazman, J. Von Delft, A. Imamoǧlu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Spin exchange between a single-electron charged quantum dot and itinerant electrons leads to an 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. Here, we 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.

Original languageEnglish
Article number157402
JournalPhysical Review Letters
Volume111
Issue number15
DOIs
StatePublished - 10 Oct 2013
Externally publishedYes

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