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Quantum control of individual spins in quantum dots coupled with a resonator

Research Project

Project/Area Number 15H02015
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Applied materials
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

ISHIBASHI Koji  国立研究開発法人理化学研究所, 石橋極微デバイス工学研究室, 主任研究員 (30211048)

Co-Investigator(Renkei-kenkyūsha) DEACON S. Russell  国立研究開発法人理化学研究所, 石橋極微デバイス工学研究室, 専任研究員 (40552443)
WANG Rui  国立研究開発法人理化学研究所, 石橋極微デバイス工学研究室, 客員研究員 (20700967)
Research Collaborator Lieber Charles M.  Harvard University
Bakkers Erik P. A. M.  TU Eindhoven
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥41,600,000 (Direct Cost: ¥32,000,000、Indirect Cost: ¥9,600,000)
Fiscal Year 2017: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
Fiscal Year 2016: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
Fiscal Year 2015: ¥21,190,000 (Direct Cost: ¥16,300,000、Indirect Cost: ¥4,890,000)
Keywordsスピン共振器相互作用 / スピン軌道相互作用 / 半導体ナノワイア / スピン / 共振器 / フォトン / 2重結合量子ドット / 量子ドット
Outline of Final Research Achievements

The spin-orbit interaction (SOI) was used to try to realize a strong interaction between individual spins in a quantum dots and a photon in a circuit resonator.The characteristic features of the SOI in the Ge/Si nanowires, such as the coherence length, spin relaxation time and their electric field dependence were studied by analyzing the magnetoresistance due to the anti-weak localization.
We have developed a technique to locate the quantum dots in a microwave coplanar waveguide superconducting resonator, and the resonator responses were measured in a mili-Kelvin temepratures, depending on the charge states and the coupling strength between the double dots. Unfortunately, the strong coherent coupling was not observed. It was found that it was because the decoherence in the quantum dots were very large compared with the coupling between the dots and the resonator.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (14 results)

All 2017 2016 Other

All Int'l Joint Research (6 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results) Presentation (6 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results)

  • [Int'l Joint Research] Harvard University(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Eindhoven University of Technology(オランダ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Harvard University(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Eindhoven University of Technology(オランダ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Eindhoven University of Technology(オランダ)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] Harvard University(米国)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Electrical modulation of weak-antilocalization and spin orbit interaction in dual gated Ge/Si core/shell nanowires2017

    • Author(s)
      Rui Wang, Russell Deacon, Jun Yao, Charles Lieber, and Koji Ishibashi
    • Journal Title

      Semiconductor Science and Technology

      Volume: 32 Issue: 9 Pages: 1-11

    • DOI

      10.1088/1361-6641/aa7ce6

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] InSb nanowire double quantum dots coupled to a superconducting microwave cavity2016

    • Author(s)
      235.Rui Wang, Russell S. Deacon, Diana Car, Erik P. A. M. Bakkers, and Koji Ishibashi
    • Journal Title

      Appl. Phys. Lett.

      Volume: 108 Issue: 20

    • DOI

      10.1063/1.4950764

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Double quantum dots embedded in a superconducting coplanar waveguide resonator2017

    • Author(s)
      K. Ishibashi, R. Wang and R. S. Deacon
    • Organizer
      2017 Sweden-Japan International Workshop on Quantum Nanophysics and Nanoelectronics (QNANO2017)
    • Place of Presentation
      パシフィコ横浜、Yokohama, Japan
    • Year and Date
      2017-03-23
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Sensitive Radio-Frequency Measurements of Charge States and Tunnel Couplings in Ge/Si Core/Shell Nanowire Quantum Dots2017

    • Author(s)
      Rui Wang, Russell S. Deacon, Jun Yao, Charles M. Lieber and Koji Ishibashi
    • Organizer
      第64回応用物理学会春季学術講演会
    • Place of Presentation
      パシフィコ横浜、横浜
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Nanowire quantum dots coupled with a superconducting microwave resonator2017

    • Author(s)
      R. Wang, R. S. Deacon, J. Yao, C. Lieber, and K. Ishibashi
    • Organizer
      2017 Workshop on innovative nanoscale devices and systems (WINDS)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Weak Anti-localiztion Study of Spin Orbit Interaction in Single Ge/Si Core/Shell Nanowires under Dual Electrical Gating2016

    • Author(s)
      Rui Wang, Russell S. Deacon, Jun Yao, Charles M. Lieber and Koji Ishibashi
    • Organizer
      33rd International Conference on the Physics of Semiconductors (ICPS2016)
    • Place of Presentation
      Beijing, China
    • Year and Date
      2016-08-02
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] InSb double quantum dots embedded in a superconducting circuit cavity - Towards strong spin-photon coupling2016

    • Author(s)
      K. Ishibashi, R. Wang and R. S. Deacon
    • Organizer
      The 18th International Symposium on the Physics of Semiconductors and Applications (ISPSA 2016)
    • Place of Presentation
      Jeju, Korea
    • Year and Date
      2016-07-03
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Microwave Resonance through the Superconducting Circuit Cavity Coupled with InSb Double Quantum Dots2016

    • Author(s)
      Rui Wang, Russell S. Deacon, Diana Car, Erik P. A. M. Bakkers and Koji Ishibashi
    • Organizer
      43rd International Symposium on Compound Semiconductors (ISCS2016)
    • Place of Presentation
      富山国際会議場、Toyama, Japan
    • Year and Date
      2016-06-27
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2022-09-27  

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