Introduction of quantum magnonics

• Project/Area Number: 26600071
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Applied materials
• Research Institution: The University of Tokyo
• Principal Investigator: Nakamura Yasunobu 東京大学, 先端科学技術研究センター, 教授 (90524083)
• Co-Investigator(Renkei-kenkyūsha): USAMI Koji 東京大学, 先端科学技術研究センター, 准教授 (90500116) ; YAMAZAKI Rekishu 東京大学, 先端科学技術研究センター, 助教 (00551409) ; TABUCHI Yutaka 東京大学, 先端科学技術研究センター, 特別研究員
• Research Collaborator: ISHIKAWA Toyofumi ; NOGUCHI Atsushi ; HISATOMI Ryusuke ; OSADA Alto ; ISHINO Seiichiro
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 強磁性体 / マグノン / 強磁性共鳴 / ガーネット

Outline of Final Research Achievements

We demonstrated quantum state control of collective spin excitations in a ferromagnetic insulator. We coupled coherently magnon excitation in a millemeter-scale magnet (a sphere of single-crystal yttrium ion garnet) with a superconducting qubit via a microwave cavity mode. It enabled us to control and measure the quantum state in the single-magnon level. The results establish a new research field dubbed "quantum magnonics" which bridges the long-lifetime spin excitations in ferromagnetic insulators frequently used in the field of spintronics with quantum state engineering as well as quantum information science.

Research Products

• [Int'l Joint Research] University of Sherbrooke(カナダ)
• [Journal Article] Coherent coupling between a ferromagnetic magnon and a superconducting qubit (2015)
  • Author(s): Y. Tabuchi, S. Ishino, A. Noguchi, T. Ishikawa, R. Yamazaki, K. Usami, and Y. Nakamura
  • Journal Title: Science Volume: 349 Issue: 6246 Pages: 405-408
  • DOI: 10.1126/science.aaa3693
  • NAID: 40020891793
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Hybridizing ferromagnetic magnons and microwave photons in the quantum limit (2014)
  • Author(s): Y. Tabuchi, S. Ishino, T. Ishikawa, R. Yamazaki, K. Usami, and Y. Nakamura
  • Journal Title: Physical Review Letters Volume: 113 Issue: 8 Pages: 083603-083603
  • DOI: 10.1103/physrevlett.113.083603
  • Peer Reviewed
• [Presentation] 強磁性体と結合した超伝導量子ビットの真空マグノン誘起ラビ振動 (2016)
  • Author(s): 田渕豊，石野誠一郎，石川豊史，野口篤史，山崎歴舟，宇佐見康二，中村泰信
  • Organizer: 日本物理学会第71回年次大会
  • Place of Presentation: 東北学院大，仙台
  • Year and Date: 2016-03-20
• [Presentation] 超伝導量子ビットと強磁性体中の単一マグノンとのコヒーレント結合の実現 (2016)
  • Author(s): 田渕豊
  • Organizer: 日本物理学会第71回年次大会
  • Place of Presentation: 東北学院大，仙台
  • Year and Date: 2016-03-20
  • Invited
• [Presentation] 強磁性体中のマグノン数に依存した超伝導量子ビットの周波数シフトの観測 (2016)
  • Author(s): 石野誠一郎，Dany Lachance-Quirion，田渕豊，石川豊史，野口篤史，山崎歴舟，宇佐見康二，中村泰信
  • Organizer: 日本物理学会第71回年次大会
  • Place of Presentation: 東北学院大，仙台
  • Year and Date: 2016-03-20
• [Presentation] Observation of magnon number states in a superconducting qubit spectrum (2016)
  • Author(s): D. Lachance-Quirion, Y. Tabuchi, S. Ishino, A. Noguchi, T. Ishikawa, R. Yamazaki, K. Usami, and Y. Nakamura
  • Organizer: APS March Meeting 2016
  • Place of Presentation: Baltimore, USA
  • Year and Date: 2016-03-15
  • Int'l Joint Research
• [Presentation] Magnonic systems in the quantum regime (2016)
  • Author(s): Y. Nakamura
  • Organizer: Gordon Research Conference on Mechanical Systems in the Quantum Regime
  • Place of Presentation: Ventura, USA
  • Year and Date: 2016-03-10
  • Int'l Joint Research / Invited
• [Presentation] Cavity optomagnonics in a ferromagnetic sphere (2016)
  • Author(s): A. Osada, R. Hisatomi, A. Noguchi, Y.Tabuchi, R. Yamazaki, M. Sadgrove, R. Yalla, M. Nomura, K. Usami, and Y. Nakamura
  • Organizer: Gordon Research Conference on Mechanical Systems in the Quantum Regime
  • Place of Presentation: Venture, USA
  • Year and Date: 2016-03-09
  • Int'l Joint Research
• [Presentation] ハイブリッド量子系を用いた光－マイクロ波量子インターフェイス (2016)
  • Author(s): 中村泰信
  • Organizer: 日本学術振興会光ネットワークシステム技術第171委員会公開研究会「量子スピン」
  • Place of Presentation: 東京
  • Year and Date: 2016-02-23
  • Invited
• [Presentation] 強磁性絶縁体中の量子マグノニクス (2016)
  • Author(s): 中村泰信
  • Organizer: 第14回 京都大学低温物質科学研究センター講演会・研究交流会
  • Place of Presentation: 京大，京都
  • Year and Date: 2016-02-19
  • Invited
• [Presentation] Quantum magnonics with light (2016)
  • Author(s): K. Usami
  • Organizer: CEMS International Symposium on Dynamics in Artificial Quantum Systems (DAQS2016)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2016-01-12
  • Int'l Joint Research / Invited
• [Presentation] Cavity optomagnonics using a whispering gallery mode resonator (2016)
  • Author(s): A. Osada, R. Hisatomi, A. Noguchi, Y. Tabuchi, R. Yamazaki, K. Usami, M. Sadgrove, R. Yalla, M. Nomura, and Y. Nakamura
  • Organizer: CEMS International Symposium on Dynamics in Artificial Quantum Systems (DAQS2016)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2016-01-12
  • Int'l Joint Research
• [Presentation] Bidirectional conversion between microwave and light via ferromagnetic magnons (2016)
  • Author(s): R. Hisatomi, A. Osada, Y. Tabuchi, T. Ishikawa, A. Noguchi, R. Yamazaki, K. Usami, and Y. Nakamura
  • Organizer: CEMS International Symposium on Dynamics in Artificial Quantum Systems (DAQS2016)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2016-01-12
  • Int'l Joint Research
• [Presentation] Bidirectional conversion between microwave and light via ferromagnetic magnons (2015)
  • Author(s): K. Usami
  • Organizer: International Workshop: Spin Energy Materials
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2015-12-03
  • Int'l Joint Research / Invited
• [Presentation] Hybrid quantum systems based on collective degrees of freedom in solids (2015)
  • Author(s): Y. Nakamura
  • Organizer: Asia-Pacific Conference and Workshop on Quantum Information Science 2015 (APCWQIS 2015)
  • Place of Presentation: Auckland, New Zealand
  • Year and Date: 2015-11-30
  • Int'l Joint Research / Invited
• [Presentation] 固体中の集団励起自由度を用いたハイブリッド量子系 (2015)
  • Author(s): 中村泰信
  • Organizer: 第33回量子情報技術研究会 (QIT33)
  • Place of Presentation: NTT基礎研，厚木
  • Year and Date: 2015-11-24
  • Invited
• [Presentation] Coherent coupling between a ferromagnetic magnon and a superconducting qubit (2015)
  • Author(s): Y. Tabuchi
  • Organizer: International Symposium on Nanoscale Transport and Technology (ISNTT) 2015
  • Place of Presentation: Atsugi, Japan
  • Year and Date: 2015-11-20
  • Int'l Joint Research / Invited
• [Presentation] Observation of magnon number states in a superconducting qubit spectrum (2015)
  • Author(s): D. Lachance-Quirion
  • Organizer: INTRIQ Meeting on the Emergence of Quantum Information. A conference in honour of Gilles Brassard
  • Place of Presentation: Sherbrooke, Canada
  • Year and Date: 2015-11-03
  • Int'l Joint Research / Invited
• [Presentation] Hybrid quantum systems based on collective excitations in solids (2015)
  • Author(s): Y. Nakamura
  • Organizer: Okinawa School in Physics: Coherent Quantum Dynamics (CQD2015)
  • Place of Presentation: Okinawa, Japan
  • Year and Date: 2015-10-05
  • Int'l Joint Research / Invited
• [Presentation] Coherent coupling between ferromagnetic magnon and superconducting qubit (2015)
  • Author(s): Y. Tabuchi, S. Ishino, A. Noguchi, T. Ishikawa, R. Yamazaki, K. Usami, and Y. Nakamura
  • Organizer: The 5th International Conference on Quantum Cryptography (QCrypt 2015)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2015-09-29
  • Int'l Joint Research
• [Presentation] 強磁性体を用いた光-マイクロ波双方向変換 (2015)
  • Author(s): 久富隆佑, 長田有登, 石野誠一郎, 野口篤史, 田渕豊, 石川豊史, 山崎歴舟, 宇佐見康二, 中村泰信
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学, 大阪
  • Year and Date: 2015-09-16
• [Presentation] 光のスピン-軌道結合を用いた共振器オプトマグノニクス (2015)
  • Author(s): 長田有登, 久富隆佑, 野口篤史, 田渕豊, 山崎歴舟, 宇佐見康二, M. Sadgrove, R. Yalla, 野村政宏, 中村泰信
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 関西大学, 大阪
  • Year and Date: 2015-09-16
• [Presentation] Quantum magnonics with a macroscopic ferromagnetic sphere (2015)
  • Author(s): Y. Nakamura
  • Organizer: SpinTech VIII International School & Conference
  • Place of Presentation: Basel, Switzerland
  • Year and Date: 2015-08-10
  • Int'l Joint Research / Invited
• [Presentation] Quantum Magnonics: Hybridizing Magnons with a Superconducting Qubit (2015)
  • Author(s): Y. Nakamura
  • Organizer: Gordon Research Conference on Spin Dynamics in Nanostructures
  • Place of Presentation: Hong Kong, China
  • Year and Date: 2015-07-26
  • Int'l Joint Research / Invited
• [Presentation] Quantum magnonics (2015)
  • Author(s): Y. Nakamura
  • Organizer: 30 years of Quantronics
  • Place of Presentation: Paris, France
  • Year and Date: 2015-06-23
  • Int'l Joint Research / Invited
• [Presentation] Bidirectional conversion between microwave and light via ferromagnetic magnons (2015)
  • Author(s): K. Usami
  • Organizer: ISSP International workshop on New Perspectives in Spintronic and Mesoscopic Physics (NPSMP2015)
  • Place of Presentation: ISSP, Kashiwa, Japan
  • Year and Date: 2015-06-10
  • Int'l Joint Research / Invited
• [Presentation] Cavity optomagnonics in a ferromagnetic sphere (2015)
  • Author(s): A. Osada, R. Hisatomi, A. Noguchi, Y. Tabuchi, R. Yamazaki, M. Sadgrove, R. Yalla, M. Nomura, K. Usami, and Y. Nakamura
  • Organizer: ISSP International workshop on New Perspectives in Spintronic and Mesoscopic Physics (NPSMP2015)
  • Place of Presentation: ISSP, Kashiwa, Japan
  • Year and Date: 2015-06-10
  • Int'l Joint Research
• [Presentation] Quantum magnonics in a cavity (2015)
  • Author(s): Y. Nakamura
  • Organizer: CIFAR Quantum Cavities Workshop
  • Place of Presentation: Aachen, Germany
  • Year and Date: 2015-05-30
  • Int'l Joint Research / Invited
• [Presentation] Observation of magneto-optical effect with a spherical ferromagnetic-crystal optical cavity (2015)
  • Author(s): A. Osada, R. Hisatomi, A. Noguchi, Y. Tabuchi, R. Yamazaki, M. Sadgrove, R. Yalla, M. Nomura, K. Usami, and Y. Nakamura
  • Organizer: Optical Nanofiber Applications: From Quantum to Bio Technologies (ONNA2015)
  • Place of Presentation: Okinawa, Japan
  • Year and Date: 2015-05-25
  • Int'l Joint Research
• [Presentation] レーザー光による物質の冷却と操作 (2015)
  • Author(s): 長田有登
  • Organizer: 国際光年記念シンポジウム ～ 国際光年記念式典～
  • Place of Presentation: 東京大学，東京
  • Year and Date: 2015-04-21
• [Presentation] 強磁性体中のスピンラマン効果を利用した光によるマイクロ波生成 (2015)
  • Author(s): 久富隆佑, 長田有登, 石野誠一郎, 野口篤史, 田渕豊, 石川豊史, 山崎歴舟, 宇佐見康二, 中村泰信
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大，新宿区，東京
  • Year and Date: 2015-03-24
• [Presentation] 強磁性体球形光共振器を用いた磁気光学効果の観測 (2015)
  • Author(s): 長田有登, 久富隆佑, 野口篤史, 田渕豊, 山崎歴舟, M. Sadgrove, R. Yalla, 野村政宏, 宇佐見康二, 中村泰信
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大，新宿区，東京
  • Year and Date: 2015-03-24
• [Presentation] 固体の素励起を介したマイクロ波‐光量子変換 (2015)
  • Author(s): 宇佐見康二
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大，新宿区，東京
  • Year and Date: 2015-03-22
  • Invited
• [Presentation] 量子情報通信のための光インターフェイス (2015)
  • Author(s): 宇佐見康二
  • Organizer: 精密工学会2015年度春季大会
  • Place of Presentation: 東洋大，文京区，東京
  • Year and Date: 2015-03-17
  • Invited
• [Presentation] Coherent coupling between ferromagnetic magnon and superconducting qubit (2015)
  • Author(s): Y. Tabuchi, S. Ishino, A. Noguchi, T. Ishikawa, R. Yamazaki, K. Usami, and Y. Nakamura
  • Organizer: APS March Meeting
  • Place of Presentation: San Antonio, Texas, USA
  • Year and Date: 2015-03-03
• [Presentation] Quantum magnonics: coherent coupling between ferromagnetic magnon and superconducting qubit (2014)
  • Author(s): Y. Nakamura
  • Organizer: ENS-UTokyo Workshop
  • Place of Presentation: Paris, France
  • Year and Date: 2014-12-08
  • Invited
• [Presentation] Toward quantum magnonics: hybridizing magnon mode in ferromagnet with superconducting qubit (2014)
  • Author(s): Y. Nakamura
  • Organizer: Fujihara seminar: Real-time dynamics of physical phenomena and manipulation by external fields
  • Place of Presentation: グランドホテルニュー王子，苫小牧，北海道
  • Year and Date: 2014-09-27
  • Invited
• [Presentation] Quantum-state control of a ferromagnetic magnon mode coupled to a superconducting qubit (2014)
  • Author(s): S. Ishino, Y. Tabuchi, T. Ishikawa, A. Noguchi, R. Yamazaki, K. Usami, and Y. Nakamura
  • Organizer: Coherent Quantum Dynamics (CQD 2014): Okinawa School in Physics: Coherent Quantum Dynamics
  • Place of Presentation: OIST，恩納，沖縄
  • Year and Date: 2014-09-16 – 2014-09-25
• [Presentation] Quantum control of magnons in a ferromagnetic crystal (2014)
  • Author(s): Y. Nakamura
  • Organizer: 第4回半導体量子効果と量子情報の夏期研修会
  • Place of Presentation: 那須サンバレーホテル，那須，栃木
  • Year and Date: 2014-09-13
• [Presentation] Toward cavity cooling of ferromagnetic magnons (2014)
  • Author(s): A. Osada, R. Hisatomi, A. Noguchi, Y. Tabuchi, R. Yamazaki, K. Usami, and Y. Nakamura
  • Organizer: 第4回半導体量子効果と量子情報の夏期研修会
  • Place of Presentation: 那須サンバレーホテル，那須，栃木
  • Year and Date: 2014-09-11 – 2014-09-13
• [Presentation] 空洞共振器を介した強磁性マグノンと超伝導量子ビットの強結合 (2014)
  • Author(s): 石野誠一郎，田渕豊，石川豊史，山崎歴舟，宇佐見康二，中村泰信
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 中部大学，春日井，愛知
  • Year and Date: 2014-09-10
• [Presentation] 空洞共振器を介した強磁性マグノンと超伝導量子ビットの可変結合 (2014)
  • Author(s): 田渕豊，石野誠一郎，石川豊史，野口篤史，山崎歴舟，宇佐見康二，中村泰信
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 中部大学，春日井，愛知
  • Year and Date: 2014-09-10
• [Presentation] 強磁性マグノンを用いた光-マイクロ波変換 (2014)
  • Author(s): 久富隆佑，宇佐見康二，長田有登，石野誠一郎，田渕豊，山崎歴舟，野口篤史，石川豊史，中村泰信
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 中部大学，春日井，愛知
  • Year and Date: 2014-09-10
• [Presentation] Strong coupling of a magnetostatic mode in yttrium iron garnet to a microwave resonator (2014)
  • Author(s): Y. Tabuchi, S. Ishino, T. Ishikawa, R. Yamazaki, K. Usami, and Y. Nakamura
  • Organizer: Mini-colloquium on Mesoscopic superconductivity and quantum circuits, Condensed Matter in Paris 2014
  • Place of Presentation: Paris, France
  • Year and Date: 2014-08-26
• [Presentation] Coherent coupling between ferromagnetic magnon and superconducting qubit (2014)
  • Author(s): Y. Tabuchi
  • Organizer: The 2nd school and conference on Spin-based quantum information processing
  • Place of Presentation: Konstanz, Germany
  • Year and Date: 2014-08-21
  • Invited
• [Presentation] Toward the cavity cooling of ferromagnetic magnons (2014)
  • Author(s): 長田有登，久富隆佑，野口篤史，田渕豊，山崎歴舟，宇佐見康二，中村泰信
  • Organizer: 基礎物理研究所研究会 若手のための量子情報セミナー
  • Place of Presentation: 京都大学，京都，京都
  • Year and Date: 2014-08-08 – 2014-08-10
• [Presentation] 超伝導量子ビットを用いたフェロ磁性体マグノンモードの量子状態制御 (2014)
  • Author(s): 石野誠一郎，田渕豊，石川豊史，野口篤史，山崎歴舟，宇佐見康二，中村泰信
  • Organizer: 基礎物理研究所研究会 若手のための量子情報セミナー
  • Place of Presentation: 京都大学，京都，京都
  • Year and Date: 2014-08-08 – 2014-08-10
• [Presentation] Quantum control of magnon modes in ferromagnet (2014)
  • Author(s): Y. Nakamura
  • Organizer: Principles & Applications of Control to Quantum Systems (PRACQSYS 2014)
  • Place of Presentation: Cambridge, UK
  • Year and Date: 2014-08-06
  • Invited
• [Presentation] Toward quantum magnonics: hybridizing magnon mode in ferromagnet with superconducting qubit (2014)
  • Author(s): Y. Nakamura
  • Organizer: Spin Mechanics 2
  • Place of Presentation: 東北大学，仙台，宮城
  • Year and Date: 2014-06-22
  • Invited
• [Presentation] Quantum-state control of a ferromagnetic magnon mode coupled to a superconducting qubit (2014)
  • Author(s): S. Ishino, Y. Tabuchi, T. Ishikawa, R. Yamazaki, K. Usami, and Y. Nakamura
  • Organizer: Spin Mechanics 2
  • Place of Presentation: 東北大学，仙台，宮城
  • Year and Date: 2014-06-21 – 2014-06-24
• [Presentation] 量子マグノニクス―強磁性マグノンモードの量子状態制御に向けて (2014)
  • Author(s): 中村泰信
  • Organizer: 第1回電気学会フォト・マグノニクス技術調査専門委員会
  • Place of Presentation: 日本大学, 船橋，千葉
  • Year and Date: 2014-05-14
  • Invited
• [Remarks] 超伝導量子ビットと磁石の球のコヒーレントな結合に初めて成功
  • URL: http://www.rcast.u-tokyo.ac.jp/pressrelease/pdf/270710release_rcast.pdf
• [Remarks] 中村・宇佐見研究室ホームページ
  • URL: http://www.qc.rcast.u-tokyo.ac.jp/