Landau-Zener-Stückelberg interferometry of a single electron charge qubit

  title={Landau-Zener-St{\"u}ckelberg interferometry of a single electron charge qubit},
  author={Jir{\'i} Stehl{\'i}k and Yuliya Dovzhenko and Jason R. Petta and J. R. Johansson and Franco Nori and H. Lu and Arthur C. Gossard},
  journal={Physical Review B},
We perform Landau-Zener-Stuckelberg interferometry on a single electron GaAs charge qubit by repeatedly driving the system through an avoided crossing. We observe coherent destruction of tunneling, where periodic driving with specific amplitudes inhibits current flow. We probe the quantum dot occupation using a charge sensor, observing oscillations in the qubit population resulting from the microwave driving. At a frequency of 9 GHz we observe excitation processes driven by the absorption of up… 

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  • R. Rosenfeld
  • Medicine
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  • 2009
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Phys. Rev. Lett
  • Phys. Rev. Lett
  • 1987
  • Acta
  • 1932
Z. R. Wasilewski, and A. S. Sachrajda, Nat. Phys
  • Z. R. Wasilewski, and A. S. Sachrajda, Nat. Phys
  • 2012
Nat. Phys
  • Nat. Phys
  • 2009
Science 309
  • 2180
  • 2005
Phys. Rep
  • Phys. Rep
  • 1998
Phys. Rev. Lett
  • Phys. Rev. Lett
  • 1994
  • Rev. B 84, 161302
  • 2011