RIKEN Center for Quantum Computing Semiconductor Quantum Information Device Research Team
Team Leader: Seigo Tarucha (D.Eng.)
Research Summary
We perform research and development to apply semiconductor electron (or hole) spins to quantum computing. Study on semiconductor quantum computing has been motivated by advantages of compatibility with existing semiconductor device integration technology and capability of high-temperature (> 1 Kelvin) operation. We demonstrate that coherent manipulation of semiconductor spin qubits in semiconductor nanostructures and superconducting nano-scale junctions is useful as elemental technology of information processing and develop relevant quantum logic calculation methods, advanced quantum architectures, qubit devices that have compatibility with semiconductor device integration technology.
Main Research Fields
- Engineering
Related Research Fields
- Interdisciplinary Science & Engineering
- Mathematical & Physical Sciences
- Condensed matter physics I
- Nanostructural physics
- Computational science
Keywords
- Quantum computer
- Qubit
- Quantum dots
- Quantum devices
- Spin control
Selected Publications
- 1.
K. Takeda, A. Noiri, T. Nakajima, L. C. Camenzind, T. Kobayashi, A. Sammak, G. Scappucci, and S. Tarucha,
"Rapid single-shot parity spin readout in a silicon double quantum dot with fidelity exceeding 99 %"
npj Quantum Info. 10, 22 (2024) - 2.
T. Kobayashi, T. Nakajima, K. Takeda, A. Noiri, J. Yoneda, and Tarucha
"Feedback-based active reset of a spin qubit in silicon"
npj Quantum Information 9, 52 (2023) - 3.
J.S. Rojas-Arias, A. Noiri, P. Stano, P (Stano, P.), T. Nakajima, J. Yoneda, K. Takeda, T. Kobayashi, A. Sammak, G. Scappucci, D. Loss, and S. Tarucha,
"Spatial noise correlations beyond nearest neighbors in 28Si/Si-Ge spin qubits"
Phys. Rev. Appl. 20, 5 (2023) - 4.
M. Tadokoro, T. Nakajima, T. Kobayashi, K. Takeda, A. Noiri, K. Tomari, J. Yoneda, S. Tarucha, and T. Kodera,
"Designs for a two-dimensional Si quantum dot array with spin qubit addressability",
Sci. Rep. 11, 19406 (2021) - 5.
K. Takeda, A. Noiri, J. Yoneda, T. Nakajima, and S. Tarucha.:
"Resonantly driven singlet-triplet spin qubit in silicon"
Phys. Rev. Lett. 124, 117701-1 – 5 (2020). - 6.
A. Noiri, K. Takeda, J. Yoneda, T.i Nakajima, T. Kodera, and S. Tarucha.:
"Radio-frequency detected fast charge sensing in undoped silicon quantum dots"
Nano Lett. 20, 947 (2020). - 7.
M. Marx, J. Yoneda, T. Otsuka, K. Takeda, Y. Yamaoka, T. Nakajima, S. Lie, A. Noiri, T. Kodera, and S. Tarucha.:
"Spin-orbit assisted spin funnels in DC transport through a physically defined pMOS double quantum dot"
Jpn. J. Appl. Phys. 58, SBBI07 (2019). - 8.
J. Yoneda, K. Takeda, T. Otsuka, T. Nakajima, M. R. Delbecq, G. Allison, T. Honda, T. Kodera, S. Oda, Y. Hoshi, N. Usami, K. M. Itoh, and S. Tarucha.:
"A quantum-dot spin qubit with coherence limited by charge noise and fidelity higher than 99.9 %"
Nature. Nanotechnol. 13, 102 (2018). - 9.
K. Takeda, J. Yoneda, T. Otsuka, T. Nakajima, M.R. Delbecq, G. Allison, Y. Hoshi, N. Usami, K. M. Itoh, S. Oda, T. Kodera, and S. Tarucha.:
"Optimized electrical control of a Si/SiGe spin qubit in the presence of an induced frequency shift"
npj Quantum Information, 4, 540 (2018). - 10.
T. Nakajima, M.R. Delbecq, T. Otsuka, S. Amaha, J. Yoneda, A. Noiri, K. Takeda, G. Allison, A. Ludwig, A.D. Wieck, X. Hu, F. Nori, and S. Tarucha.:
"Coherent transfer of electron spin correlations assisted by dephasing noise"
Nature Commun. 9, 2133 (2018).
Related Links
Lab Members
Principal investigator
- Seigo Tarucha
- Team Leader
Core members
- Takashi Kobayashi
- Research Scientist
- Reiko Kuroda
- Technical Staff I
Careers
| Position | Deadline |
|---|---|
| Seeking a Postdoctoral Researcher (W24031) | Open until filled |
Contact Information
Main building
2-1 Hirosawa,
Wako, Saitama
351-0198
Email: tarucha@riken.jp