RIKEN Center for Emergent Matter Science Quantum Functional System Research Group
Group Director: Seigo Tarucha (D.Eng.)
Research Summary
Hardware and underlying physics for quantum information processing with quantum control of soli-state quantum states are studied. Quantum information processing is an ideal information technology whose operation accompanies low-energy dissipation and high information security. The purpose of this laboratory is to demonstrate ability of the solid-state information processing using quantum operations of quantum coherence and entanglement in semiconductor and superconductor nanostructures and finally outline a path for the realization. The specific research targets are"quantum computing"including quantum logic operation and quantum simulation, "quantum interface" which can offer quantum memory and relay, and "quantum nanodevices"relavent for the quantum control. Architectures for best suited quantum systems, science and technology for both materials and devices, and fundamental physics of quantum entanglement decoherence and spin correlation are investigated.
Main Research Fields
- Mathematical & Physical Sciences
Related Research Fields
- Informatics
- Engineering
Keywords
- Semiconductor quantum dots
- Quantum wire
- Quantum computation
- Topological quantum computation
- Quantum transport
Selected Publications
- 1.T. Otsuka, T. Nakajima, M. R. Delbecq, S. Amaha, J. Yoneda, K. Takeda, G. Allison, T. Ito, R. Sugawara, A. Noiri, A. Ludwig, A. D. Wieck, and S. Tarucha,
"Single-electron Spin Resonance in a Quadruple Quantum Dot",
Scientific Reports 6 31820 (2016) - 2.K. Takeda, J. Kamioka, T. Otsuka, J. Yoneda, T. Nakajima, M. R. Delbecq, S. Amaha, G. Allison, T. Kodera, S. Oda, and S. Tarucha,
"A fault-tolerant addressable spin qubit in a natural silicon quantum dot",
Science Advances 2 e1600694 (2016) - 3.A. Noiri, J. Yoneda, T. Nakajima, T. Otsuka, M. R. Delbecq, K. Takeda, S. Amaha, G. Allison, A. Ludwig, A. D. Wieck, S. Tarucha,
"Coherent electron-spin-resonance manipulation of three individual spins in a triple quantum dot",
Appl. Phys. Lett. 108 153101 (2016) - 4.M.R. Delbecq, T. Nakajima, P. Stano, T. Otsuka, S. Amaha, J. Yoneda, K. Takeda, G. Allison, A. Ludwig, A.D. Wieck, and S. Tarucha.:
"Quantum dephasing in a gated GaAs triple quantum dot due to non-ergodic noise"
Phys. Rev. Lett. 116, 0468020 (2016) - 5.I. Sohn, S. Tarucha, and B.S. Choi,
"Analysis of physical requirements for simple three-qubit and nine-qubit quantum error correction on quantum-dot and superconductor qubits",
Phys. Rev. A 95, No. 1, pp.012306-1-7, 2017. - 6.S. Hermelin, B. Bertrand, S. Takada, M. Yamamoto, S. Tarucha, A. Ludwig, A.D. Wieck, C. Bäuerle, and T. Meunier,
"Classical information transfer between distant quantum dots using individual electrons in fast moving quantum dots",
Phys. Status Solidi B 254, No. 3, pp.1600673-1-12 (2017). - 7.T. Ito, T. Otsuka, S. Amaha, M.R. Delbecq, T. Nakajima, J. Yoneda, K. Takeda, G. Allison, A. Noiri, K. Kawasaki, and S. Tarucha,
"Detection and control of charge states in a quintuple quantum dot",
Scientific Reports 6, pp. 39113-1-7 (2016). - 8.T. Fujita, P. Stano, G. Allison, K. Morimoto, Y. Sato, M. Larsson, J.-H. Park, A. Ludwig, A.D. Wieck, A. Oiwa, and S. Tarucha,
"Signatures of hyperfine, spin-orbit, and decoherence effects in a Pauli spin blockade",
Phys. Rev. Lett. 117, No. 20, pp.206802-1-6 (2016). - 9.H. Kiyama, T. Nakajima, S. Teraoka, A. Oiwa, and S. Tarucha,
"Single-shot ternary readout of two-electron spin states in a quantum dot using spin filtering by quantum Hall edge states",
Phys. Rev. Lett. 117, No.23, pp.236802-1-5 (2016). - 10.Y. Yamaoka, K. Iwasaki, S. Oda and T. Kodera
"Charge sensing and spin-related transport property of p-channel silicon quantum dots"
Jpn. J. Appl. Phys. 56, 04CK07-1-4, 2017
Recent Research Results
-
Dec. 28, 2018
Hybrid qubits solve key hurdle to quantum computing -
Apr. 14, 2017
Putting a block on dot-to-dot -
Dec. 16, 2016
Exotic quantum technology realized using normal silicon -
Jul. 1, 2015
Producing spin-entangled electrons -
Jul. 11, 2014
Joining the dots for quantum computing
Related Links
Lab Members
Principal investigator
- Seigo Tarucha
- Group Director
Core members
- Takashi Nakajima
- Senior Scientist
- Kenta Takeda
- Senior Scientist
- Akito Noiri
- Research Scientist
- Sadashige Matsuo
- Research Scientist
- Ikkyeong Jin
- Postdoctoral Researcher
- Soichiro Teraoka
- Technical Staff I
- Leon Luca Caspar Camenzind
- Visiting Researcher
- Michael Desmond Fraser
- Senior Visiting Scientist
- Tomohiro Otsuka
- Visiting Scientist
- Yago Baltasar Del Valle Inclan Redondo
- Visiting Scientist
- Raisei Mizokuchi
- Visiting Scientist
- Go Shinkai
- Visiting Scientist
- Chutian Wen
- Junior Research Associate
- Yi-Hsien Wu
- International Program Associate
- Shohei Kobayashi
- Student Trainee
- Ryutaro Matsuoka
- Student Trainee
- Patrick Buetler
- Intern
Careers
Position | Deadline |
---|---|
Seeking a Postdoctoral Researchers (W23334) | Open until filled |
Seeking a Postdoctoral Researcher (W23293) | Open until filled |
Seeking Postdoctoral Researchers (W22221) | Open until filled |
Contact Information
Email: tarucha [at] riken.jp