The Institute of Scientific and Industrial Research, Osaka University


LAST UPDATE 2017/02/26

  • 研究者氏名
    Researcher Name

    大岩顕 Akira OIWA
    教授 Professor
  • 所属
    Professional Affiliation

    The Institute of Scientific and Industrial Research, Osaka University

    Division of Information and Quantum Sciences, Quantum System Electronics
  • 研究キーワード
    Research Keywords

    Semiconductor low-dimensional quantum physics
    Photon-spin quantum interface
    Semiconductor spintronics
Research Subject
Innovative hybrid quantum devices based on spins and photons

研究の背景 Background


Recently, the development in the micro-fabrication technologies for semiconductors and metal enables one to realize the variety of phenomena based on quantum mechanics. Such quantum effect would potentially bring the low-power consumption devices and future devices operating with novel concept. In particular, electron spin is a universal nature in solid and the spintronics and quantum computation, which use the spin degree of freedom, has become research areas attractive for both basic science and applications.

研究の目標 Outcome


Based on semiconductor devices, our research fields are quantum information processing using the quantum mechanical nature of electron spins and photons, and spintronics based on the development and hybridization of optical, electrical and spin materials. We study the growth and characterization of high quality materials and perform precise quantum transport measurements. Aim of our research is the realization of novel phenomena emerging in quantum nanostructures that can control the photon, electron and spin degrees of freedom.

研究図Research Figure

Fig.1. (Top) Schematic illustration of photon-spin quantum conversion. (Bottom) Scanning electron micrograph of a gate defined GaAs quantum dot. Fig.2. (Left) Scanning electron micrograph of an InAs selfassembled quantum dot with a source-drain electrode. (Right) Typical Coulomb diamond measured in an InAs selfassembled quantum dot at 2 K.

文献 / Publications

Nature Nanotechnology 6, 511 (2011). Phys. Rev. Lett. 110, 226803 (2013). Applied Physics Letters 104, 263101 (2014). Nature communications 6, 7446 (2015).