Creation of Innovation in Quantum Technologies Based on Quantum Dot

  • 1.6 Quantum information/Quantum cryptography
  • 2.1 Quantum bits, memories, devices(Superconducting circuits, Ion trapping, Trapped cold atoms, Photons, Quantum dots, etc.)
  • 2.2 Quantum sensing(Quantum metrology/Sensing/Imaging, Optical lattice clocks)
  • 2.4 Quantum optics/Quantum teleportation(Quantum optical network/Quantum repeaters)
  • 2.5 Quantum wiring/Quantum electronics/Electronics for Quantum Information
Yasuhiko Arakawa
Institute for Nano Quantum Information Electronics
Project Professor
This project is being promoted at the Quantum Innovation Co-Creation Center established within the Institute for Nano Quantum Information Electronics for the purpose of further developing the industry-academia-government collaboration in the quantum technology field, cultivated over many years. In this center, the quantum-dot lab and six Todai-Industry labs collaborate closely to explore advanced quantum dot technologies and quantum state manipulation science based on solid quantum electrodynamics. Moreover, by advancing quantum dot laser technologies, silicon photonics and quantum technologies such as single photon sources and integrated quantum photonics, we are proceeding with research and development aiming to create innovation.
Single photon emission at 350K from a GaN-based nanowire quantum dot.
Solid-state cavity electrodynamics in quantum dot-photonic crystal nanocavity coupled systems and statistics of published papers with the key word of “quantum dot”

Related links

Research collaborators

  ・ Main Collaborators
    ・Prof. Satoshi Iwamoto (Research Center for Advanced Science and Technology)
    ・Mark Holmes (Institute of Industrial Science)

  ・ Collaborators in Industry
    ・SHARP Inc.
    ・NEC Inc.
    ・Fujitsu Labs Inc.
    ・QD Laser Inc.

Related publications

Y Arakawa, H Sakaki, “Multidimensional quantum well laser and temperature dependence of its threshold current”, Applied Physics Letters 40, 939 (1982).
C Weisbuch, M Nishioka, A Ishikawa, Y Arakawa, “Observation of the coupled exciton-photon mode splitting in a semiconductor quantum microcavity”, Physical Review Letters 69, 3314 (1992).
A Tandaechanurat, S Ishida, D Guimard, M Nomura, S Iwamoto, Y. Arakawa, “Lasing oscillation in a three-dimensional photonic crystal nanocavity with a complete bandgap”, Nature Photonics 5, 91 (2009).
M Nomura, N Kumagai, S Iwamoto, Y Ota, Y Arakawa, “Laser oscillation in a strongly coupled single-quantum-dot–nanocavity system”, Nature Physics 6, 279-283 (2010).
MJ Holmes, K Choi, S Kako, M Arita, Y Arakawa, “Room-temperature triggered single photon emission from a III-nitride site-controlled nanowire quantum dot”, Nano letters 14, 982 (2014).


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