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Spectral Properties of Stochastic Resonance in Quantum Transport

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autorschaft

  • Robert Hussein
  • Sigmund Kohler
  • Johannes C. Bayer
  • Timo Wagner
  • Rolf J. Haug

Externe Organisationen

  • Universität Konstanz
  • Spanish National Research Council (CSIC)

Details

OriginalspracheEnglisch
Aufsatznummer206801
FachzeitschriftPhysical review letters
Jahrgang125
Ausgabenummer20
PublikationsstatusVeröffentlicht - 10 Nov. 2020

Abstract

We investigate theoretically and experimentally stochastic resonance in a quantum dot coupled to electron source and drain via time-dependent tunnel barriers. A central finding is a transition visible in the current noise spectrum as a bifurcation of a dip originally at zero frequency. The transition occurs close to the stochastic resonance working point and relates to quantized pumping. For the evaluation of power spectra from measured waiting times, we generalize a result from renewal theory to the ac-driven case. Moreover, we develop a master equation method to obtain phase-averaged current noise spectra for driven quantum transport.

ASJC Scopus Sachgebiete

Zitieren

Spectral Properties of Stochastic Resonance in Quantum Transport. / Hussein, Robert; Kohler, Sigmund; Bayer, Johannes C. et al.
in: Physical review letters, Jahrgang 125, Nr. 20, 206801, 10.11.2020.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Hussein R, Kohler S, Bayer JC, Wagner T, Haug RJ. Spectral Properties of Stochastic Resonance in Quantum Transport. Physical review letters. 2020 Nov 10;125(20):206801. doi: 10.48550/arXiv.2006.13773, 10.1103/PhysRevLett.125.206801
Hussein, Robert ; Kohler, Sigmund ; Bayer, Johannes C. et al. / Spectral Properties of Stochastic Resonance in Quantum Transport. in: Physical review letters. 2020 ; Jahrgang 125, Nr. 20.
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AU - Wagner, Timo

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N1 - Funding Information: This work was supported by the Zukunftskolleg of the University of Konstanz and by the Spanish Ministry of Science, Innovation, and Universities under Grant No. MAT2017-86717-P and the CSIC Research Platform on Quantum Technologies PTI-001, by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2123 Quantum Frontiers—390837967, and by the State of Lower Saxony, Germany, via Hannover School for Nanotechnology and School for Contacts in Nanosystems.

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