Centers & Labs

RIKEN Center for Emergent Matter Science

Quantum Optics Research Group

Group Director: Yoshihisa Yamamoto (D.Eng.)
Yoshihisa Yamamoto(D.Eng.)

Our group is working in the three areas: digital quantum computing based on optical pulse controlled quantum dot spin, quantum simulation based on exciton-polariton condensates, and analog quantum computing based on injection-locked laser network. The group efforts include theoretical and experimental research and over fundamental physics and engineering applications.

Research Fields

Physics / Engineering / Computer Science / Multidisciplinary

Research Subjects

  • Digital quantum computing based on optical pulse controlled quantum dot spins
  • Quantum simulation based on exciton-polariton condensates
  • Analog coherent computing based on injection-locked laser network

Publications

  1. * De Greve, K., Yu, L., McMahon, P. L., Pelc, J. S., Natarajan, C. M., Kim, N. Y., Abe, E., Maier, S., Schneider, C., Kamp, M., Höfling, S., Hadfield, R. H., Forchel, A., Fejer, M. M., and Yamamoto, Y.:
    "Quantum-dot spin-photon entanglement via frequency downconversion to telecom wavelength"
    Nature 491, 421-425, (2012)
  2. * Jones, N. C., Van Meter, R., Fowler, A. G., McMahon, P. L., Kim, J., Ladd, T., and Yamamoto, Y.:
    "Layered architecture for quantum computing"
    Phys. Rev. X 2, 031007 (2012)
  3. * Press, D., Ladd, T. D., Zhang, B., and Yamamoto, Y.:
    "Complete quantum control of a single quantum dot spin using ultrafast optical pulses"
    Nature 456, 218-221 (2008)
  4. * Lai, C. W., Kim, N. Y., Utsunomiya, S., Roumpos, G., Deng, H., Fraser, M. D., Byrnes, T., Recher, P., Kumada, N., Fujisawa, T., and Yamamoto, Y.:
    "Coherent zero-state and π-state in an exciton-polariton condensate array"
    Nature 450, 529 (2007)
  5. * Deng, H., Weihs, G., Santori, C., Bloch, J., and Yamamoto Y.:
    "Condensation of semiconductor microcavity exciton polaritons"
    Science 298, 199-202 (2002)
  6. * Santori, C., Fattal, D., Vučković, J., Solomon, G. S., and Yamamoto, Y.:
    "Indistinguishable photons from a single-photon device"
    Nature 419, 594-597 (2002)
  7. * Santori, C., Pelton, M., Solomon, G. S., Dale, Y., and Yamamoto, Y.:
    "Triggered single photons from a quantum dot"
    Phys. Rev. Lett. 86, 1502-1505 (2001)
  8. * Harris, E. and Yamamoto, Y.:
    "Photon switching by quantum interference"
    Phys. Rev. Lett. 81, 3611-3614 (1998)
  9. * Machida, S., Yamamoto, Y., and Itaya, Y.:
    "Observation of amplitude squeezing in a constant-current-driven semiconductor laser"
    Phys. Rev. Lett. 58, 1000-1003 (1987)
  10. * Yamamoto, Y. and Kimura, T.:
    "Coherent optical fiber transmission systems"
    IEEE J. Quantum Electron. QE-17, 919-935 (1981)