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

Research Project

Project/Area Number 21H01023
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
Research InstitutionNTT Basic Research Laboratories

Principal Investigator

Okamoto Hajime  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, 特別研究員 (20350465)

Co-Investigator(Kenkyū-buntansha) 浅野 元紀  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 (60867224)
章 国強  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 (90402247)
太田 竜一  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 (90774894)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2023: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2022: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2021: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Keywords振動 / 光 / 結合 / 共振器 / 振動子 / キャビティ / もつれ / 近接場 / 光共振器 / ナノワイヤ / 近接 / 光キャビティ / 量子もつれ
Outline of Research at the Start

本研究では、従来手法と比べて簡便かつ個別の電気/光配線が不要な固体振動子(巨視的フォノン系)間の量子もつれ生成手法を提案実証する。具体的には、半導体基板上にボトムアップ成長した2個ないしは複数の自立型ナノワイヤ振動子を用意し、これらの量子極限における超高感度変位検出を可能とする球状シリカ光キャビティと近接場結合させる。基板に取り付けたポジショナを用いてナノワイヤと光キャビティとの近接間隔を周期変調することにより光機械結合を制御し、互いのナノワイヤ振動子が“もつれた(相関した)”状態を生成する。このアプローチにより、従来手法と比べて簡便であり多体系への展開も可能な本手法の有効性を実証する。

Outline of Final Research Achievements

We proposed a method for generating entanglement between solid-state oscillators using near-field light in an optical microcavity, and attempted to demonstrate it experimentally by applying it to nanowire oscillators. During the research period, we succeeded in not only fabricating an ultra-high-Q cavity necessary for quantum limited displacement measurements but also proposing and demonstrating displacement measurements using Raman amplification to solve the problem of Q deterioration when bringing this cavity close to a vibrating body. Although the demonstration was successful, the actuator used for high-speed modulation of the close distance required for entanglement did not function sufficiently, and the goal could not be achieved within the period. Meanwhile, in the course of our research, we succeeded in creating a new optomechanical structure in which high-Q cavities are connected, and achieved ultra-sensitive vibration measurement in an in-liquid environment.

Academic Significance and Societal Importance of the Research Achievements

今回提案・実証した光キャビティのラマン増幅を用いた近接場変位測定手法は様々な材質や形状から成る振動体へと適用できる汎用性の高い計測手法であり、従来のキャビティオプトメカニクス研究をこれまでにない新規系へと展開できる可能性を広げる。ナノワイヤよりも大きな構造体間のエンタングルメント生成も将来的に視野に入る。また、今回提案・実証した連結キャビティ構造を用いた高感度液中計測技術は、従来キャビティオプトメカニクス技術の適用が困難であった液体環境での研究展開を可能とする新技術であり、センサ・材料開発・創薬などの応用の他、液体界面の物理探索や局所的な液中反応の解明など、新たな研究領域の開拓につながる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (37 results)

All 2024 2023 2022 2021 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results,  Open Access: 1 results) Presentation (26 results) (of which Int'l Joint Research: 15 results,  Invited: 7 results) Remarks (2 results)

  • [Journal Article] Fiber-type optomechanical array using high-Q microbottle resonators2024

    • Author(s)
      Asano Motoki, Yamaguchi Hiroshi, Okamoto Hajime
    • Journal Title

      Physical Review Applied

      Volume: 21 Issue: 2 Pages: 024013-024013

    • DOI

      10.1103/physrevapplied.21.024013

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A highly sensitive optomechanical liquid level meter based on a twin-microbottle resonator2023

    • Author(s)
      Asano Motoki、Yamaguchi Hiroshi、Okamoto Hajime
    • Journal Title

      Proceeding of 28th International Conference on Optical Fiber Sensors

      Volume: Th6 Pages: 43-43

    • DOI

      10.1364/ofs.2023.th6.43

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phononic Crystal Cavity Magnomechanics2023

    • Author(s)
      Hatanaka Daiki、Asano Motoki、Okamoto Hajime、Yamaguchi Hiroshi
    • Journal Title

      Physical Review Applied

      Volume: 19 Issue: 5 Pages: 054071-054071

    • DOI

      10.1103/physrevapplied.19.054071

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [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

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 光と振動を利用した液中センサー2023

    • Author(s)
      浅野 元紀、山口 浩司、岡本 創
    • Journal Title

      光学

      Volume: 52 Pages: 247-247

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cavity optomechanical mass sensor in water with sub-femtogram resolution2023

    • Author(s)
      Motoki Asano, Hiroshi Yamaguchi, Hajime Okamoto
    • Journal Title

      Applied Physics Express

      Volume: 16 Issue: 3 Pages: 032002-032002

    • DOI

      10.35848/1882-0786/acbd0d

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Free-access optomechanical liquid probes using a twin-microbottle resonator2022

    • Author(s)
      Motoki Asano, Hiroshi Yamaguchi, Hajime Okamoto
    • Journal Title

      Science Advances

      Volume: 8 Issue: 44

    • DOI

      10.1126/sciadv.abq2502

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Double-Gate Vectorial Frequency Control in Piezoresistive Nanowire Electromechanical Devices2022

    • Author(s)
      W. Tomita, S. Sasaki, M. Asano, K. Tateno, H. Okamoto, and H. Yamaguchi
    • Journal Title

      Physical Review Applied

      Volume: 17 Issue: 4 Pages: 044042-044042

    • DOI

      10.1103/physrevapplied.17.044042

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] ガラスファイバを用いた共振器オプトメカニクス2024

    • Author(s)
      浅野元紀、佐久間涼子、山口浩司、岡本創
    • Organizer
      第6回固体化学フォーラム研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 連結ボトル構造を用いたメカニカルコムの伝搬2024

    • Author(s)
      浅野元紀、山口浩司、岡本創
    • Organizer
      日本物理学会 2024年春季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 連結ボトル共振器を用いた超高感度液面計の計測分解能2024

    • Author(s)
      浅野元紀、山口浩司、岡本創
    • Organizer
      第71回 応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 光キャビティのラマン増幅を用いた薄膜振動の近接場計測2024

    • Author(s)
      佐久間涼子、浅野元紀、山口浩司、岡本創
    • Organizer
      第71回 応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Modulation in magnetoelastic response of cavity magnomechanical devices under strong acoustic spin pumping2024

    • Author(s)
      畑中 大樹、ミンナルト エティエンヌ、浅野 元紀、岡本 創、山口 浩司
    • Organizer
      第71回 応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Entropy production in two-mode continuous nonlinear feedback2023

    • Author(s)
      M. Asano, H. Okamoto, and H. Yamaguchi
    • Organizer
      Feedback in Quantum Mechanics 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A highly sensitive optomechanical liquid level meter based on a twin-microbottle resonator2023

    • Author(s)
      M. Asano, H. Yamaguchi, and H. Okamoto
    • Organizer
      28th International Conference on Optical Fiber Sensors
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Demonstration of an acoustic resonator exceeding 40 GHz2023

    • Author(s)
      M. Kurosu, D. Hatanaka, H. Yamaguchi, Y. Taniyasu, and H. Okamoto
    • Organizer
      36th International Microprocesses and Nanotechnology Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Entropy production with continuous nonlinear feedback in quadrature amplitudes2023

    • Author(s)
      M. Asano, H. Okamoto, and H. Yamaguchi
    • Organizer
      28th International Conference on Statistical Physics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Control of ultrahigh frequency phonon transport in valley topological ring resonator-waveguide systems2023

    • Author(s)
      D. Hatanaka, H. Takeshita, M. Kataoka, M. Misawa, H. Okamoto, H. Yamaguchi, and K. Tsuruta
    • Organizer
      6th International Conference on Phononic Crystals/Metamaterials/Metasurfaces, Phonon Transport, Topological Phononics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cavity optomechanical liquid prober using a twin-microbottle resonator2023

    • Author(s)
      M. Asano, H. Yamaguchi, and H. Okamoto
    • Organizer
      Frontiers of Nanomechanical Systems Workshop 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Acoustic spin pumping and the back-action in a phononic crystal cavity2023

    • Author(s)
      D. Hatanaka, M. Asano, H. Okamoto, and H. Yamaguchi
    • Organizer
      Frontiers of Nanomechanical Systems Workshop 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [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
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [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
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] フォノニック人工構造を用いた共振器マグノメカニクス2023

    • Author(s)
      畑中 大樹、浅野 元紀、国橋 要司、眞田 治樹、岡本 創、山口 浩司
    • Organizer
      第3回ナノ磁性研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 連結ボトル構造からなる共振器オプトメカニカルアレイ2023

    • Author(s)
      浅野 元紀、山口 浩司、岡本 創
    • Organizer
      日本物理学会 年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 連結ボトル共振器を用いたフェムトグラム分解能の水中質量センサ2023

    • Author(s)
      浅野 元紀、山口 浩司、岡本 創
    • Organizer
      応用物理学会 秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Cavity optomechanical liquid prober using a twin-microbottle resonator2023

    • Author(s)
      Motoki Asano, Hiroshi Yamaguchi, Hajime Okamoto
    • Organizer
      Frontiers of Nanomechanical Systems Workshop 2023
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 連結ボトル共振器を用いた液中オプトメカニカルプローバの質量分解能2023

    • Author(s)
      浅野 元紀、山口 浩司、岡本 創
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] An optomechanical prober in liquid with twin microbottle resonators2022

    • Author(s)
      Motoki Asano, Hiroshi Yamaguchi, Hajime Okamoto
    • Organizer
      International Workshop on Nanomechanical Sensing 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [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
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2連結ボトル共振器を用いた液中オプトメカニカルプローバ2022

    • Author(s)
      浅野 元紀、山口 浩司、岡本 創
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Dual-mode and Dual-gate Nanowire Electromechanical Resonator Devices2021

    • Author(s)
      H. Yamaguchi, W. Tomita, S. Sasaki, K. Tateno, and H. Okamoto
    • Organizer
      20th International Conference on Modulated Semiconductor Structures
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Remarks] NTT物性科学基礎研究所 フロンティア機能物性研究部 ナノメカニクス研究グループ HP

    • URL

      https://www.brl.ntt.co.jp/group/butsume-g/

    • Related Report
      2023 Annual Research Report
  • [Remarks] NTT物性科学基礎研究所ナノメカニクス研究グループHP

    • URL

      http://www.brl.ntt.co.jp/group/butsume-g/

    • Related Report
      2022 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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