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Journal of Low Temperature Physics

, Volume 146, Issue 1–2, pp 253–262 | Cite as

Landau–Zener Interferometry in a Cooper-Pair Box

  • M. Sillanpää
  • T. Lehtinen
  • A. Paila
  • Yu. Makhlin
  • P. J. Hakonen
Article

In a driven system, a sequence of Landau–Zener transitions occur, and they may interfere with each other. We present experimental evidence of quantum interference effects in a superconducting charge qubit, a Cooper-pair box, where the LZ tunneling occurs at the charge degeneracy. By employing weak capacitive monitoring, we observe interference between consecutive LZ tunneling events.

Keywords

PACS Numbers 74.50.+r 73.23.-b 73.23.Hk 

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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • M. Sillanpää
    • 1
  • T. Lehtinen
    • 1
  • A. Paila
    • 1
  • Yu. Makhlin
    • 1
    • 2
  • P. J. Hakonen
    • 1
  1. 1.Low Temperature LaboratoryHelsinki University of TechnologyEspooFinland
  2. 2.Landau Institute for Theoretical PhysicsMoscowRussia

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