Ohta Ryuichi 太田竜一

Researcher Number	90774894
Other IDs
Affiliation (Current)	2025: 北海道大学, 電子科学研究所, 准教授
Affiliation (based on the past Project Information) *help	2022 – 2024: 日本電信電話株式会社NTT物性科学基礎研究所, フロンティア機能物性研究部, 主任研究員 2021: 日本電信電話株式会社NTT物性科学基礎研究所, フロンティア機能物性研究部, 研究主任
Review Section/Research Field	Principal Investigator Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related Except Principal Investigator Basic Section 30020:Optical engineering and photon science-related / Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
Keywords	Principal Investigator 量子メモリ / 強結合 / 希土類元素 / 光導波路 / 表面弾性波 / ナノフォトニック構造 / 弾性波 / エルビウム Except Principal Investigator Photonic crystal cavity / Waveguide … More / Silicon photonics / Rare earth ion / Photonic nanocavity / Nuclear spin / Rare-earth ion / 量子もつれ / 光キャビティ / 近接 / ナノワイヤ / 光共振器 / 近接場 / もつれ / キャビティ / 振動子 / 共振器 / 結合 / 光 / 振動 Less

高効率量子光メモリの創発へ向けた希土類イオン励起電子と機械振動の結合系の研究Principal Investigator
- Principal Investigator
  
  太田竜一
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
- Research Institution
  NTT Basic Research Laboratories
On-chip nuclear spin qubit platform based on individual erbium-167 ions in silicon photonic nanocavities for quantum repeaters
- Principal Investigator
  
  徐学俊
- Project Period (FY)
  2023 – 2025
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 30020:Optical engineering and photon science-related
- Research Institution
  NTT Basic Research Laboratories
Generation of macroscopic phonon entanglement by a microsphere optical cavity and nanowire oscillators
- Principal Investigator
  
  Okamoto Hajime
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Review Section
  
  Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
- Research Institution
  NTT Basic Research Laboratories

All 2024 2023 2022

All Journal Article Presentation

[Journal Article] Observation of Acoustically Induced Dressed States of Rare-Earth Ions2024
- Author(s)
  Ohta Ryuichi、Lelu Gregoire、Xu Xuejun、Inaba Tomohiro、Hitachi Kenichi、Taniyasu Yoshitaka、Sanada Haruki、Ishizawa Atsushi、Tawara Takehiko、Oguri Katsuya、Yamaguchi Hiroshi、Okamoto Hajime
- Journal Title
  
  Physical Review Letters
  
  Volume: 132 Issue: 3 Pages: 036904-036904
- DOI
  10.1103/physrevlett.132.036904
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-20H00357, KAKENHI-PROJECT-21H01023, KAKENHI-PROJECT-23K23263, KAKENHI-PROJECT-23K25809, KAKENHI-PROJECT-23K26580
[Journal Article] Coherent response of inhomogeneously broadened and spatially localized emitter ensembles in waveguide QED2024
- Author(s)
  L. Ruks、X. Xu、R. Ohta、W. J. Munro、V. M. Bastidas
- Journal Title
  
  Physical Review A
  
  Volume: 109 Issue: 2 Pages: 023706-023706
- DOI
  10.1103/physreva.109.023706
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23K25809, KAKENHI-PROJECT-23K26580
[Journal Article] Impedance-matched high-overtone bulk acoustic resonator2023
- Author(s)
  Kurosu M.、Hatanaka D.、Ohta R.、Yamaguchi H.、Taniyasu Y.、Okamoto H.
- Journal Title
  
  Applied Physics Letters
  
  Volume: 122 Issue: 12 Pages: 122201-122201
- DOI
  10.1063/5.0141405
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21H01023
[Presentation] 転写プリント法を用いた Er:YSO 上 Si 光導波路の作製と光学評価2024
- Author(s)
  岡島大優、太田竜一、佐藤拓未、立崎裕真、徐学俊、岡本創、太田泰友
- Organizer
  2024年第71回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-23K26580
[Presentation] Coherent response of inhomogeneously broadened and spatially localized emitter ensembles in waveguide QED2024
- Author(s)
  L. Ruks, X. Xu, R. Ohta, W. J. Munro, V. M. Bastidas
- Organizer
  Nanophotonics and Micro/Nano Optics International Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K25809
[Presentation] 転写プリント法によるEr:YSO上Si光導波路の作製2024
- Author(s)
  岡島大優、太田竜一、佐藤拓未、立崎裕真、徐学俊、岡本創、太田泰友
- Organizer
  第71回応用物理学会春季学術講演会
- Data Source
  KAKENHI-PROJECT-23K25809
[Presentation] Observation of the multiple acoustic phonon sidebands in erbium ions2023
- Author(s)
  Ryuichi Ohta, Gregoire Lelu, Xuejun Xu, Tomohiro Inaba, Kenichi Hitachi, Yoshitaka Taniyasu, Haruki Sanada, Atsushi Ishizawa, Takehiko Tawara, Katsuya Oguri, Hiroshi Yamaguchi, and Hajime Okamoto
- Organizer
  International Conference on Nano-photonics and Nano-optoelectronics 2023 (ICNN 2023)
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26580
[Presentation] Novel directions in hybrid phononic devices2023
- Author(s)
  H. Yamaguchi, D. Hatanaka, R. Ohta, M. Asano, and H. Okamoto
- Organizer
  XVII Conference on Phonon Scattering in Condensed Matter
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H01023
[Presentation] Novel Directions in Hybrid Phononic Devices2023
- Author(s)
  H. Yamaguchi, D. Hatanaka, R. Ohta, M. Asano, and H. Okamoto
- Organizer
  Phonons 2023
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K25809
[Presentation] Coherent optical elements formed collectively from ensembles of rare-earth ions embedded into optical waveguides2023
- Author(s)
  Lewis Ruks, Xuejun Xu, Ryuichi Ohta, William J. Munro, and Victor M. Bastidas
- Organizer
  Nanophotonics and Micro/Nano Optics International Conference 2023 (NANOP 2023)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26580
[Presentation] Acoustic control of optical excitation of rare-earth ions2023
- Author(s)
  Ryuichi Ohta, Gregoire Lelu, Xuejun Xu, Tomohiro Inaba, Kenichi Hitachi, Yoshitaka Taniyasu, Haruki Sanada, Atsushi Ishizawa, Takehiko Tawara, Katsuya Oguri, Hiroshi Yamaguchi, and Hajime Okamoto
- Organizer
  2023 Conference on Lasers and Electro-Optics (CLEO)
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K26580
[Presentation] Acoustic control of the optical excitation of rare-earth ions2023
- Author(s)
  R. Ohta, G. Lelu, X. Xu, T. Inaba, K. Hitachi, Y. Taniyasu, H. Sanada, A. Ishizawa, T. Tawara, K. Oguri, H. Yamaguchi, H. Okamoto
- Organizer
  Conference on Lasers and Electro-Optics
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K25809
[Presentation] Hybrid phononic devices for classical and quantum technologies2023
- Author(s)
  H. Yamaguchi, D. Hatanaka, R. Ohta, M. Asano, and H. Okamoto
- Organizer
  Feedback in Quantum Mechanics 2023
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H01023
[Presentation] 量子ハイブリッドデバイスとメカニカルセンシング技術2023
- Author(s)
  山口浩司、畑中大樹、太田竜一、浅野元紀、岡崎雄馬、岡本創
- Organizer
  新世代研究所2023年度第1回ナノメカニクス研究会
- Invited
- Data Source
  KAKENHI-PROJECT-21H01023
[Presentation] Observation of the multiple acoustic phonon sidebands in erbium ions2023
- Author(s)
  R. Ohta, G. Lelu, X. Xu, T. Inaba, K. Hitachi, Y. Taniyasu, H. Sanada, A. Ishizawa, T. Tawara, K. Oguri, H. Yamaguchi, and H. Okamoto
- Organizer
  International Conference on Nano-photonics and Nano-optoelectronics
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H01023
[Presentation] 微小機械構造を用いた長寿妙な発光集合体の制御2023
- Author(s)
  太田竜一、鳩村拓矢、平石真也、V. M. Bastidas、徐学俊、俵毅彦、W. J. Munro、山口浩司、岡本創
- Organizer
  日本物理学会第78回年次大会
- Invited
- Data Source
  KAKENHI-PROJECT-23K25809
[Presentation] Observation of the multiple acoustic phonon sidebands in erbium ions2023
- Author(s)
  R. Ohta, G. Lelu, X. Xu, T. Inaba, K. Hitachi, Y. Taniyasu, H. Sanada, A. Ishizawa, T. Tawara, K. Oguri, H. Yamaguchi, H. Okamoto
- Organizer
  Optics&Photonics International Congress
- Invited / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-23K25809
[Presentation] Acoustic control of optical excitation of rare-earth ions2023
- Author(s)
  R. Ohta, G. Lelu, X. Xu, T. Inaba, K. Hitachi, Y. Taniyasu, H. Sanada, A. Ishizawa, T. Tawara, K. Oguri, H. Yamaguchi, and H. Okamoto
- Organizer
  The 2023 CLEO Conference
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H01023
[Presentation] Vectorial frequency control of two orthogonal vibration modes in a double-gate nanowire mechanical resonator device2022
- Author(s)
  Wataru Tomita, Satoshi Sasaki, Motoki Asano, Kohta Tateno, Hajime Okamoto, Hiroshi Yamaguchi
- Organizer
  The Compound Semiconductor Week 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21H01023

1. Okamoto Hajime (20350465)

# of Collaborated Projects: 2 results

# of Collaborated Products: 12 results
2. 俵毅彦 (40393798)

# of Collaborated Projects: 2 results

# of Collaborated Products: 5 results
3. 徐学俊 (80593334)

# of Collaborated Projects: 2 results

# of Collaborated Products: 11 results
4. 浅野元紀 (60867224)

# of Collaborated Projects: 1 results

# of Collaborated Products: 4 results
5. 章国強 (90402247)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. 石澤淳 (30393797)

# of Collaborated Projects: 1 results

# of Collaborated Products: 3 results
7. 稲葉智宏 (90839119)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results

Ohta Ryuichi 太田 竜一

Research Projects

Research Products

Co-Researchers

高効率量子光メモリの創発へ向けた希土類イオン励起電子と機械振動の結合系の研究Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

On-chip nuclear spin qubit platform based on individual erbium-167 ions in silicon photonic nanocavities for quantum repeaters

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Generation of macroscopic phonon entanglement by a microsphere optical cavity and nanowire oscillators

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Observation of Acoustically Induced Dressed States of Rare-Earth Ions2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Coherent response of inhomogeneously broadened and spatially localized emitter ensembles in waveguide QED2024

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Impedance-matched high-overtone bulk acoustic resonator2023

Author(s)

Journal Title

DOI

Data Source

[Presentation] 転写プリント法を用いた Er:YSO 上 Si 光導波路の作製と光学評価2024

Author(s)

Organizer

Data Source

[Presentation] Coherent response of inhomogeneously broadened and spatially localized emitter ensembles in waveguide QED2024

Author(s)

Organizer

Data Source

[Presentation] 転写プリント法によるEr:YSO上Si光導波路の作製2024

Author(s)

Organizer

Data Source

[Presentation] Observation of the multiple acoustic phonon sidebands in erbium ions2023

Author(s)

Organizer

Data Source

[Presentation] Novel directions in hybrid phononic devices2023

Author(s)

Organizer

Data Source

[Presentation] Novel Directions in Hybrid Phononic Devices2023

Author(s)

Organizer

Data Source

[Presentation] Coherent optical elements formed collectively from ensembles of rare-earth ions embedded into optical waveguides2023

Author(s)

Organizer

Data Source

[Presentation] Acoustic control of optical excitation of rare-earth ions2023

Author(s)

Organizer

Data Source

[Presentation] Acoustic control of the optical excitation of rare-earth ions2023

Author(s)

Organizer

Data Source

[Presentation] Hybrid phononic devices for classical and quantum technologies2023

Author(s)

Organizer

Data Source

[Presentation] 量子ハイブリッドデバイスとメカニカルセンシング技術2023

Author(s)

Organizer

Ohta Ryuichi 太田竜一