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RIKEN Center for Quantum Computing Hybrid Quantum Circuits Research Team

Team Leader: Atsushi Noguchi (Ph.D.)

Research Summary

Atsushi Noguchi (Ph.D.)

In superconducting circuits, various quantum functions, such as qubits and parametric circuits, emerge due to the large nonlinearity of the Josephson junction without any loss. These systems, which combine these high-performance quantum systems with other quantum systems, are called hybrid quantum systems. We aim to construct high-lifetime quantum systems, such as microwave resonators and trapped electrons, and observe and control them with superconducting circuits, in order to establish quantum control techniques that greatly outperform existing quantum systems and to demonstrate quantum error correction codes using these techniques.

Main Research Fields

  • Mathematical & Physical Sciences

Related Research Fields

  • Interdisciplinary Science & Engineering
  • Quantum electronics


  • Superconducting circuit
  • Hybrid quantum systems
  • Single electron manipulation
  • Quantum optics
  • Quantum information

Selected Publications

Papers with an asterisk(*) are based on research conducted outside of RIKEN.

  • 1. A. Noguchi, R. Yamazaki, Y. Tabuchi, Y. Nakamura.:
    "Single-photon quantum regime of artificial radiation pressure on a surface acoustic wave resonator"
    Nature Communications 11, 1183 (2020).
  • 2. A. Noguchi, R. Yamazaki, Y. Tabuchi, Y. Nakamura.:
    "Qubit-assisted transduction for a detection of surface acoustic waves near the quantum limit"
    Physical Review Letters 119, 180505 (2017).
  • 3. A. Noguchi, R. Yamazaki, M. Ataka, H. Fujita, Y. Tabuchi, T. Ishikawa, K. Usami, Y. Nakamura.:
    "Ground state cooling of a quantum electromechanical system with a silicon nitride membrane in a 3D loop-gap cavity"
    New Journal of Physics 18, 103036 (2016).
  • 4. *K. Toyoda, R. Hiji, A. Noguchi, S. Urabe.:
    "Hong-Ou-Mandel interference of two phonons in trapped ions"
    Nature 527, 74 (2015).
  • 5. Y. Tabuchi, S. Ishino, A. Noguchi, T. Ishikawa, R. Yamazaki, K. Usami, Y. Nakamura.:
    "Coherent coupling between a ferromagnetic magnon and a superconducting qubit"
    Science 349, 405 (2015).
  • 6. *A. Noguchi, Y. Shikano K. Toyoda, S. Urabe.:
    "Aharonov-Bohm effect in the tunnelling of a quantum rotor in a a linear Paul trap"
    Nature Communications 5, 3868 (2014).
  • 7. *K. Toyoda, Y. Matsuno, A. Noguchi, S. Haze, S. Urabe.:
    "Experimental Realization of a Quantum Phase Transition of Polaritonic Excitations"
    Physical Review Letters 111, 160501 (2013).
  • 8. *A. Noguchi, K. Toyoda, S. Urabe.:
    "Generation of Dicke States with Phonon-Mediated Multi-level Stimulated Raman Adiabatic Passage"
    Physical Review Letters 109, 260502 (2012).
  • 9. *A. Noguchi, S. Haze, K. Toyoda, S. Urabe.:
    "Generation of a Decoherence-Free Entangled State Using a Radio-Frequency Dressed State"
    Physical Review Letters 108, 060503 (2012)
  • 10. *Y. Eto, A. Noguchi, P. Zhang, M. Ueda, M. Kozuma.:
    "Projective measurement of a single nuclear spin qubit by using two-mode cavity QED"
    Physical Review Letters 106, 160501 (2011).

Lab Members

Principal investigator

Atsushi Noguchi
Team Leader

Core members

Ryo Sasaki
Special Postdoctoral Researcher
Yusuke Tominaga
Postdoctoral Researcher
Shotaro Shirai
Postdoctoral Researcher
Ryo Maekura
Junior Research Associate
Ippei Nakamura
Visiting Scientist
Yuta Tsuchimoto
Visiting Scientist


Position Deadline
Seeking a few Research Scientist or Postdoctoral Researchers or Research Associates (W23198) Open until filled

Contact Information

Bldg. S01 Room S403
2-1 Hirosawa,
Wako, Saitama
Email: atsushi.noguchi [at] riken.jp