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, and A. İmamoğlu
Phys. Rev. Lett. 111, 157402 – Published 10 October 2013
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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.

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  • Received 28 November 2012

DOI:https://doi.org/10.1103/PhysRevLett.111.157402

© 2013 American Physical Society

Authors & Affiliations

B. Sbierski1,2, M. Hanl3, A. Weichselbaum3, H. E. Türeci1,4, M. Goldstein5, L. I. Glazman5, J. von Delft3, and A. İmamoğlu1

  • 1Institute for Quantum Electronics, ETH Zürich, CH-8093 Zürich, Switzerland
  • 2Dahlem Center for Complex Quantum Systems and Institut für Theoretische Physik, FU Berlin, D-14195 Berlin, Germany
  • 3Arnold Sommerfeld Center for Theoretical Physics and Center for NanoScience, LMU München, D-80333 München, Germany
  • 4Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA
  • 5Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06520, USA

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Vol. 111, Iss. 15 — 11 October 2013

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