Optically induced coherence effects in `artificial atoms and molecules'

Details Optically induced coherence effects in `artificial atoms and molecules' Optically induced coherence effects in `artificial atoms and molecules'

2002-04-22

arxiv.org/abs/cond-mat/0204463v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

13 pages; to be published in "Radiation-Matter Interaction in Confined Systems", a Volume to the memory of Giovanna Panzarini

Scientific paper

Using a master-equation approach for the description of coherent and incoherent dynamics in `artificial atoms and molecules', we present a theoretical analysis of situations where intense laser fields lead to pronounced renormalizations of carrier states. Such enhanced light-matter interactions allow for the solid-state implementation of effects hitherto only observable in atomic systems. Two prototypical examples will be presented: first, we show how two intense laser pulses can be exploited for a robust and high-fidelity population transfer of carrier states in coupled quantum dots; second, we discuss the possibility of observing self-induced transparency in a sample of inhomogenously broadened quantum dots, a phenomenon where intense laser pulses propagate without suffering significant losses.

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