Three-level mixing and dark states in transport through quantum dots

Clive Emary, Christina Pöltl, and Tobias Brandes
Phys. Rev. B 80, 235321 – Published 16 December 2009

Abstract

We consider theoretically the transport through the double quantum dot structure of the recent experiment of Payette et al. [Phys. Rev. Lett. 102, 026808 (2009)] and calculate stationary current and shot noise. Three-level mixing gives rise to a pronounced current-suppression effect, the character of which changes markedly with bias direction. We discuss these results in connection with the dark states of coherent population trapping in quantum dots.

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  • Received 27 August 2009

DOI:https://doi.org/10.1103/PhysRevB.80.235321

©2009 American Physical Society

Authors & Affiliations

Clive Emary, Christina Pöltl, and Tobias Brandes

  • Institut für Theoretische Physik, TU Berlin, Hardenbergstr. 36, D-10623 Berlin, Germany

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Issue

Vol. 80, Iss. 23 — 15 December 2009

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