Shot Noise of a Quantum Shuttle

Tomáš Novotný, Andrea Donarini, Christian Flindt, and Antti-Pekka Jauho
Phys. Rev. Lett. 92, 248302 – Published 16 June 2004

Abstract

We formulate a theory for shot noise in quantum nanoelectromechanical systems. As a specific example, the theory is applied to a quantum shuttle, and the zero-frequency noise, measured by the Fano factor F, is computed. F reaches very low values (F102) in the shuttling regime even in the quantum limit, confirming that shuttling is universally a low noise phenomenon. In approaching the semiclassical limit, the Fano factor shows a giant enhancement (F102) at the shuttling threshold, consistent with predictions based on phase-space representations of the density matrix.

  • Figure
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  • Received 24 February 2004

DOI:https://doi.org/10.1103/PhysRevLett.92.248302

©2004 American Physical Society

Authors & Affiliations

Tomáš Novotný1,2,*, Andrea Donarini1,†, Christian Flindt1,‡, and Antti-Pekka Jauho1,§

  • 1MIC–Department of Micro and Nanotechnology, Technical University of Denmark, DTU–Building 345 East, DK-2800 Kongens Lyngby, Denmark
  • 2Department of Electronic Structures, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague, Czech Republic

  • *Electronic address: tno@mic.dtu.dk
  • Electronic address: ad@mic.dtu.dk
  • Electronic address: cf@mic.dtu.dk
  • §Electronic address: antti@mic.dtu.dk

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Issue

Vol. 92, Iss. 24 — 18 June 2004

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