RIKEN Center for Quantum Computing Optical Quantum Computing Research Team
Team Leader: Akira Furusawa (Ph.D.)
Research Summary

Our final goal is the realization of fault-tolerant large-scale universal optical quantum computers with our original deterministic quantum teleportation methodology. The heart of this methodology is cluster states of optical modes, which are special multipartite entangled states and correspond to “quantum look-up tables for quantum computation”. We will pursue the size and precision of the cluster states with our original time-domain multiplexing methodology.
Main Research Fields
- Mathematical & Physical Sciences
Related Research Fields
- Engineering
- Informatics
- Complex Systems
- Interdisciplinary Science & Engineering
- Atomic/Molecular/Quantum electronics
Keywords
- Quantum Information Science
- Quantum Optics
Selected Publications
Papers with an asterisk(*) are based on research conducted outside of RIKEN.
- 1.*Furusawa, A., Sorensen, J. L., Braunstein, S. L., Fuchs, C. A., Kimble, H. J., and Polzik, E. S.:
"Unconditional quantum teleportation"
Science 282, 706 (1998). - 2.*Yonezawa, H., Aoki, T., and Furusawa, A.:
"Demonstration of a quantum teleportation network for continuous variables"
Nature 431, 430 (2004). - 3.*Lee, N., Benichi, H., Takeno, Y., Takeda, S., Webb, J., Huntington, E., and Furusawa, A.:
"Teleportation of non-classical wave-packets of light"
Science 332, 330 (2011). - 4.*Yonezawa, H., Nakane, D., Wheatly, T. A., Iwasawa, K., Takeda, S., Arao, H., Ohki, K., Tsumura, K., Berry, D. W., Ralph, T. C., Wiseman, H. M., Huntington, E. H., and Furusawa, A.:
"Quantum-enhanced optical-phase tracking"
Science 337, 1514 (2012). - 5.*Takeda, S., Mizuta, T., Fuwa, M., van Loock, P., and Furusawa, A.:
"Deterministic quantum teleportation of photonic quantum bits by a hybrid technique"
Nature 500, 315 (2013). - 6.*Asavanant, W., Shiozawa, Y., Yokoyama, S., Charoensombutamon, B., Emura, H., Alexander, R. N., Takeda, S., Menicucci, N. C., Yonezawa, H., and Furusawa, A.:
"Generation of time-domain-multiplexed two-dimensional cluster state"
Science 366, 373 (2019). - 7.Kashiwazaki, T., Yamashima, T., Enbutsu, K., Kazama, T., Inoue, A., Fukui, K., Endo, M., Umeki, T., and Furusawa, A.:
"Over-8-dB squeezed light generation by a broadband waveguide optical parametric amplifier toward fault-tolerant ultra-fast quantum computers"
Appl. Phys. Lett. 122, 234003 (2023) - 8.Endo, M., He, R., Sonoyama, T., Takahashi, K., Kashiwazaki, T., Umeki, T., Takasu, S., Hattori, K., Fukuda, D., Fukui, K., Takase, K., Asavanant, W., Marek, P., Filip, R., and Furusawa, A.:
"Non-Gaussian quantum state generation by multi-photon subtraction at the telecommunication wavelength"
Optics Express 31, 12865-12879 (2023) - 9.Inoue, A., Kashiwazaki, T., Yamashima, T., Takanashi, N., Kazama, T., Enbutsu, K., Watanabe, K., Umeki, T., Endo, M., and Furusawa, A.:
"Toward a multi-core ultra-fast optical quantum processor: 43-GHz bandwidth real-time amplitude measurement of 5-dB squeezed light using modularized optical parametric amplifier with 5G technology"
Appl. Phys. Lett. 122, 104001 (2023) - 10.Sakaguchi, A., Konno, S., Hanamura, F., Asavanant, W., Takase, K., Ogawa, H., Marek, P., Filip, R., Yoshikawa, J., Huntington, E., Yonezawa, H., and Furusawa, A.:
"Nonlinear feedforward enabling quantum computation"
Nature Communications 14, 3817(2023)
Lab Members
Principal investigator
- Akira Furusawa
- Team Leader
Core members
- Jun-ichi Yoshikawa
- Research Scientist
- Atsushi Sakaguchi
- Postdoctoral Researcher
Careers
Position | Deadline |
---|---|
Seeking a few Postdoctoral Researchers (W23082) | Open until filled |
Contact Information
2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Email: akira.furusawa [at] riken.jp