RIKEN Center for Emergent Matter Science Superconducting Quantum Electronics Research Group
Group Director: Yasunobu Nakamura (D.Eng.)
Research Summary

We study quantum electronics in superconducting circuits and hybrid quantum systems. The targets of our research include quantum information processing and ultra-sensitive measurement based on quantum mechanical properties of the circuits. Superconducting quantum circuits offer excellent tools for the purposes. Let us celebrate the century of quantum engineering together!
Main Research Fields
- Interdisciplinary Science & Engineering
Related Research Fields
- Mathematical & Physical Sciences
Keywords
- Superconductivity
- Quantum mechanics
- Quantum optics
- Quantum information
Selected Publications
- 1.Nakamura, Y., Pashkin, Yu. A., and Tsai, J. S.:
"Coherent control of macroscopic quantum states in a single-Cooper-pair box"
Nature 398, 786 (1999). - 2.Chiorescu, I., Nakamura, Y., Harmans, C. J. P. M., and Mooij, J. E.:
"Coherent quantum dynamics of a superconducting flux-qubit"
Science 299, 1869 (2003). - 3.Yamamoto, T., Pashkin, Yu. A., Astafiev, O., Nakamura, Y., and Tsai, J. S.:
"Demonstration of conditional gate operation using superconducting charge qubit"
Nature 425, 941-944 (2003). - 4.Niskanen, A. O., Harrabi, K., Yoshihara, F., Nakamura, Y., Lloyd, S., and Tsai, J. S.:
"Quantum coherent tunable coupling of superconducting qubits"
Science 316, 723 (2007). - 5.Yamamoto, T., Inomata, K., Watanabe, M., Matsuba, K., Miyazaki, T., Oliver, W. D., Nakamura, Y., and Tsai, J. S.:
"Flux-driven Josephson parametric amplifier"
Appl. Phys. Lett. 93, 042510 (2008). - 6.Astafiev, O., Zagoskin, A. M., Abdumalikov, Jr., A. A., Pashkin, Yu. A., Yamamoto, T., Inomata, K., Nakamura, Y., and Tsai, J. S.:
"Resonance fluorescence of a single artificial atom"
Science 327, 840 (2010). - 7.Koshino, K., Inomata, K., Yamamoto, T., and Nakamura, Y.,:
"Implementation of an impedance-matched Λ system by dressed-state engineering"
Phys. Rev. Lett. 111, 153601 (2013). - 8.Lin, Z.R., Inomata, K., Koshino, K., Oliver,W.D., Nakamura, Y., Tsai, J.S., and Yamamoto, T.:
"Josephson parametric phase-locked oscillator and its application to dispersive readout of superconducting qubits"
Nature Commun. 5, 4480 (2014). - 9.Inomata, K., Koshino, K., Lin, Z.R., Oliver, W.D., Tsai, J.S., Nakamura, Y., and Yamamoto, T.:
"Microwave down-conversion with an impedance-matched Λ system in driven circuit QED"
Phys. Rev. Lett. 113, 063604 (2014). - 10.Inomata, K., Lin, Z.R., Koshino, K., Oliver, W.D., Tsai, J.S., Yamamoto, T., and Nakamura, Y.:
"Single microwave-photon detector using an artificial Λ-type three-level system"
Nature Commun. 7, 12303 (2016).
Recent Research Results
Jul. 3, 2020
Wiring a new path to scalable quantum computing
Related Links
Lab Members
Principal investigator
- Yasunobu Nakamura
- Group Director
Core members
- Hiroki Ikegami
- Senior Research Scientist
- Kun Zuo
- Postdoctoral Researcher
- Kirill Shulga
- Postdoctoral Researcher
- Koichi Kusuyama
- Technical Staff I
- Koh-ichi Nittoh
- Technical Staff I
- Laszlo Szikszai
- Technical Staff I
- Yoshiro Urade
- Visiting Researcher
- Tsuyoshi Yamamoto
- Visiting Scientist
- Kunihiro Inomata
- Visiting Scientist
- Zhirong Lin
- Visiting Scientist
Careers
Position | Deadline |
---|---|
Seeking a Research Scientist / Postdoctoral Researcher (W19233) | Open until filled |
Contact Information
Bldg.S01 Room S403, 2-1 Hirosawa, Wako, Saitama
351-0198, Japan
Email: yasunobu.nakamura [at] riken.jp