Feedback Control of Quantum Transport

Tobias Brandes
Phys. Rev. Lett. 105, 060602 – Published 5 August 2010

Abstract

The current through nanostructures like quantum dots can be stabilized by a classical feedback loop that continuously adjusts system parameters as a function of the number of tunnelled particles n. At large times, the feedback loop freezes the fluctuations of n, which leads to highly accurate, continuous single particle transfers. For the simplest case of feedback acting simultaneously on all system parameters, we show how to reconstruct the original full counting statistics from the frozen distribution.

  • Figure
  • Figure
  • Received 5 May 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.060602

© 2010 The American Physical Society

Authors & Affiliations

Tobias Brandes

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

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Issue

Vol. 105, Iss. 6 — 6 August 2010

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