論文

査読有り
2016年4月11日

Coherent electron-spin-resonance manipulation of three individual spins in a triple quantum dot

Applied Physics Letters
  • A. Noiri
  • J. Yoneda
  • T. Nakajima
  • T. Otsuka
  • M. R. Delbecq
  • K. Takeda
  • S. Amaha
  • G. Allison
  • A. Ludwig
  • A. D. Wieck
  • S. Tarucha
  • 全て表示

108
15
開始ページ
153101
終了ページ
153101
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1063/1.4945592
出版者・発行元
American Institute of Physics Inc.

Quantum dot arrays provide a promising platform for quantum information processing. For universal quantum simulation and computation, one central issue is to demonstrate the exhaustive controllability of quantum states. Here, we report the addressable manipulation of three single electron spins in a triple quantum dot using a technique combining electron-spin-resonance and a micro-magnet. The micro-magnet makes the local Zeeman field difference between neighboring spins much larger than the nuclear field fluctuation, which ensures the addressable driving of electron-spin-resonance by shifting the resonance condition for each spin. We observe distinct coherent Rabi oscillations for three spins in a semiconductor triple quantum dot with up to 25 MHz spin rotation frequencies. This individual manipulation over three spins enables us to arbitrarily change the magnetic spin quantum number of the three spin system, and thus to operate a triple-dot device as a three-qubit system in combination with the existing technique of exchange operations among three spins.

リンク情報
DOI
https://doi.org/10.1063/1.4945592
URL
http://aip.scitation.org/doi/10.1063/1.4945592
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84964507261&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84964507261&origin=inward
ID情報
  • DOI : 10.1063/1.4945592
  • ISSN : 0003-6951
  • eISSN : 1077-3118
  • ORCIDのPut Code : 76798245
  • SCOPUS ID : 84964507261

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