Quantum information technology based on wavelength conversion of a photon

• Project/Area Number: 23684035
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Atomic/Molecular/Quantum electronics
• Research Institution: Osaka University
• Principal Investigator: YAMAMOTO Takashi 大阪大学, 基礎工学研究科, 准教授 (10403130)
• Co-Investigator(Renkei-kenkyūsha): KOASHI Masato 東京大学, 光量子科学研究センター, 教授 (90322099) ; IMOTO Nobuyuki 大阪大学, 大学院基礎工学研究科, 教授 (00313479)
• Project Period (FY): 2011-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥27,950,000 (Direct Cost: ¥21,500,000、Indirect Cost: ¥6,450,000); Fiscal Year 2013: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2012: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000); Fiscal Year 2011: ¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
• Keywords: 量子エレクトロニクス / 量子光学 / 量子情報 / 波長変換 / 量子工学

Research Abstract

Quantum information processing employing diverse media such as photons, atoms and trapped ions have been actively studied over the past two decade. Photons play a significant role as a currier of quantum information over a long distance. On the other hand, other matter systems are considered to be used as storage and manipulation of quantum information at a specific location. When we look at a quantum repeater, entanglement between matters and photons is considered as an elemental resource for the long distance quantum communication. Creations of the entanglement between matters and photons have been demonstrated, but it is limited for the visible wavelength of the photons that is not suitable for a long distance fiber telecommunication. In this project, we have demonstrated a wavelength converter while preserving the quantum state from visible to telecommunication wavelength for efficient transmission of the quantum states of photons.

Research Products

• [Journal Article] Universal gates for transforming multipartite entangled Dicke states (2014)
  • Author(s): T. Kobayashi, R. Ikuta, S. K. Ozdemir, M. Tame, T. Yamamoto, M. Koashi and N. Imoto
  • Journal Title: New Journal of Physics Volume: Vol. 16 Issue: 2 Pages: 23005-23005
  • DOI: 10.1088/1367-2630/16/2/023005
  • Peer Reviewed
• [Journal Article] High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors (2013)
  • Author(s): Rikizo Ikuta, Hiroshi Kato, Yoshiaki Kusaka, Shigehito Miki, Taro Yamashita, Hirotaka Terai, Mikio Fujiwara, Takashi Yamamoto, Masato Koashi, Masahide Sasaki, Zhen Wang, Nobuyuki Imoto
  • Journal Title: Phys. Rev. A Volume: 87
  • Peer Reviewed
• [Journal Article] Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation (2013)
  • Author(s): Rikizo Ikuta, Toshiki Kobayashi, Hiroshi Kato, Shigehito Miki, Taro Yamashita, Hirotaka Terai, Mikio Fujiwara, Takashi Yamamoto, Masato Koashi, Masahide Sasaki, Zhen Wang, Nobuyuki Imoto
  • Journal Title: Phys. Rev. A Volume: 88 Pages: 42317-42317
  • Peer Reviewed
• [Journal Article] Observation of two output light pulses from a partial wavelength converter preserving phase of an input light at a single-photon level (2013)
  • Author(s): Rikizo Ikuta, Toshiki Kobayashi, Hiroshi Kato, Shigehito Miki, Taro Yamashita, Hirotaka Terai, Mikio Fujiwara, Takashi Yamamoto, Masato Koashi, Masahide Sasaki, Zhen Wang, Nobuyuki Imoto
  • Journal Title: Opt. Express Volume: 21 Pages: 27865-27865
  • Peer Reviewed
• [Journal Article] Observation of two output light pulses from a partial wavelength converter preserving phase of an input light at a single-photon level (2013)
  • Author(s): R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto
  • Journal Title: Optics Express Volume: Vol. 21 Issue: 23 Pages: 27865-27872
  • DOI: 10.1364/oe.21.027865
  • Peer Reviewed
• [Journal Article] Nonclassical two-photon interference between independent telecommunication light pulses converted by difference-frequency generation (2013)
  • Author(s): R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto
  • Journal Title: Physical Review A Volume: Vol. 88 Issue: 4 Pages: 42317-42317
  • DOI: 10.1103/physreva.88.042317
  • Peer Reviewed
• [Journal Article] Robustness of quantum communication based on a decoherence-free subspace using a counter-propagating weak coherent light pulse (2013)
  • Author(s): H. Kumagai, T. Yamamoto, M. Koashi, and N. Imoto
  • Journal Title: Physical Review A Volume: Vol. 87 Issue: 5 Pages: 52325-52325
  • DOI: 10.1103/physreva.87.052325
  • Peer Reviewed
• [Journal Article] High-fidelity conversion of photonic quantum information to telecommunication wavelength with superconducting single-photon detectors (2013)
  • Author(s): R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, and N. Imoto
  • Journal Title: Physical Review A Volume: Vol. 87 Issue: 1
  • DOI: 10.1103/physreva.87.010301
  • Peer Reviewed
• [Journal Article] Wide-band quantum interface for visible-to-telecommunication wavelength conversion (2011)
  • Author(s): Rikizo Ikuta, Yoshiaki Kusaka, Tsuyoshi Kitano, Hiroshi Kato, Takashi Yamamoto, Masato Koashi, and Nobuyuki Imoto
  • Journal Title: Nat. Commun. Volume: 2 Issue: 1 Pages: 537-537
  • DOI: 10.1038/ncomms1544
  • Peer Reviewed
• [Journal Article] An optical fusion gate for W-states (2011)
  • Author(s): S.K.Ozdemir, E.Matsunaga, T.Tashima, T.Yamamoto, M.Koashi, N.Imoto
  • Journal Title: New J.Phys.13 Volume: 103003 Issue: 10 Pages: 103003-103003
  • DOI: 10.1088/1367-2630/13/10/103003
  • Peer Reviewed
• [Presentation] A photonic quantum interface for an optical fiber based quantum communication (2013)
  • Author(s): Takashi Yamamoto, R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, M. Koashi, M. Sasaki, Z. Wang, N. Imoto
  • Organizer: 20th Central European Workshop on Quantum Optics
  • Place of Presentation: KTH, Stockholm, Sweden
  • Year and Date: 2013-06-17
• [Presentation] Visible to Telecommunication wavelength conversion of single photons and its applications (2013)
  • Author(s): Takashi Yamamoto
  • Organizer: The 11th US-Japan Joint Seminar on Quantum Electronics and Laser Spectroscopy"Ultimate Quantum Systems of Light and Matter- Control and Applications"
  • Place of Presentation: Nara Prefectural New Public Hall, Japan
  • Year and Date: 2013-04-09
• [Presentation] A Photonic Quantum Interface for Visible-to-Telecommunication Wavelength Conversion (2012)
  • Author(s): Takashi Yamamoto, R. Ikuta, M. Koashi, N. Imoto
  • Organizer: IEEE PHOTONICS CONFERENCE 2012
  • Place of Presentation: Hyatt Regency San Francisco Airport, USA
  • Year and Date: 2012-09-26
  • Invited
• [Presentation] 光子の量子状態操作と量子情報通信 (2012)
  • Author(s): 山本俊
  • Organizer: 量子科学フロンティア
  • Place of Presentation: 日本大学理工学部駿河台校舎(御茶ノ水)
  • Year and Date: 2012-04-26
• [Presentation] 逆伝播コヒーレント光を用いたDFSによる量子通信の雑音耐性 (2012)
  • Author(s): 熊谷英敏, 山本俊, 小芦雅斗, 井元信之
  • Organizer: 日本物理学会2012年春季大会
  • Place of Presentation: 関西学院大学上ヶ原キャンパス(兵庫県)
  • Year and Date: 2012-03-24
• [Presentation] 超伝導単一光子検出器を用いた量子状態の高忠実度波長変換実験 (2012)
  • Author(s): 生田力三, 他
  • Organizer: 日本物理学会2012年春季大会
  • Place of Presentation: 関西学院大学上ヶ原キャンパス(兵庫県)
  • Year and Date: 2012-03-24
• [Presentation] DFSに保護されたエンタングル光子対を用いたエンタングルメントスワッピング実験 (2012)
  • Author(s): 勝瀬大佑、長谷川浩史、生田力三、山本俊、小芦雅斗、井元信之
  • Organizer: 日本物理学会2012年春季大会
  • Place of Presentation: 関西学院大学上ヶ原キャンパス(兵庫県)
  • Year and Date: 2012-03-24
• [Presentation] On the performance of quantum communication protocols based on decoherence-free subspaces (2011)
  • Author(s): H.Kumagai, T.Yamamoto, M.Koashi, N.Imoto
  • Organizer: International workshop on heavy fermions TOKI MEKI 2011
  • Place of Presentation: SIGMA hall, Osaka University, Osaka, Japan
  • Year and Date: 2011-11-25
• [Presentation] Photonic quantum interface for visible-to-telecommunication wavelength conversion (2011)
  • Author(s): 生田力三, 他
  • Organizer: 第25回量子情報技術研究会(QIT25)
  • Place of Presentation: 大阪大学基礎工学研究科(大阪府)
  • Year and Date: 2011-11-21
• [Presentation] 光子を用いた量子情報処理 (2011)
  • Author(s): 山本俊
  • Organizer: 第2回先端フォトニクスシンポジウム
  • Place of Presentation: 日本学術会議講堂(東京都)
  • Year and Date: 2011-10-07
• [Presentation] 可視域エンタングルメント光子対の周波数下方変換実験 (2011)
  • Author(s): 生田力三, 他
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学五福キャンパス(富山県)
  • Year and Date: 2011-09-21
• [Presentation] PPLNを用いた非古典光の周波数下方変換実験 (2011)
  • Author(s): 山本俊,生田力三,北野剛史,日下良章,加藤大織,小芦雅斗,井元信之
  • Organizer: 2011年秋季第72回応用物理学会学術講演会
  • Place of Presentation: 山形大学小白川キャンパス (30a-ZR-7)
  • Year and Date: 2011-08-30
• [Presentation] PPLNを用いた非古典光の周波数下方変換実験 (2011)
  • Author(s): 山本俊, 他
  • Organizer: 2011年秋季第72回応用物理学会学術講演会
  • Place of Presentation: 山形大学小白川キャンパス(山形県)
  • Year and Date: 2011-08-30
• [Presentation] Wide-band quantum interface for visible-to-telecommunication wavelength conversion (2011)
  • Author(s): R.Ikuta, 他
  • Organizer: 11th Asian Quantum Information Science Conferenee (AQIS 2011)
  • Place of Presentation: Pukyong National University, Busan, Korea
  • Year and Date: 2011-08-27
• [Presentation] 光量子状態制御と量子情報通信への応用 (2011)
  • Author(s): 山本俊
  • Organizer: 第1回光科学異分野横断萌芽研究会
  • Place of Presentation: かんぽの宿奈良
  • Year and Date: 2011-08-10
  • Invited
• [Presentation] 光量子状態制御と量子情報通信への応用 (2011)
  • Author(s): 山本俊
  • Organizer: 第1回光科学異分野横断萌芽研究会
  • Place of Presentation: かんぽの宿奈良(奈良県)(招待講演)
  • Year and Date: 2011-08-10
• [Presentation] 可視域から通信波長域への非古典光の周波数下方変換実験 (2011)
  • Author(s): 日下良章, 他
  • Organizer: 第24回量子情報技術研究会(QIT24)
  • Place of Presentation: 東京工業大学大岡山キャンパス(東京都)
  • Year and Date: 2011-05-12
• [Presentation] Frequency down-conversion of non-classical light from visible wavelength to telecom wavelength using difference-frequency generation (2011)
  • Author(s): R.Ikuta, 他
  • Organizer: CLEO : 2011
  • Place of Presentation: Baltimore, Maryland, USA
  • Year and Date: 2011-05-05
• [Presentation] Visible-to-Telecommunication wavelength conversion of single photons and its applications
  • Author(s): T. Yamamoto
  • Organizer: The 11th US-Japan Joint Seminar on Quantum Electronics and Laser Spectroscopy “Ultimate Quantum Systems of Light and Matter- Control and Applications”
  • Place of Presentation: Nara Prefectural New Public Hall, Japan
  • Invited
• [Presentation] A photonic quantum interface for an optical fiber based quantum communication
  • Author(s): T. Yamamoto, R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, M. Koashi, M. Sasaki, Z. Wang, N. Imoto
  • Organizer: 20th Central European Workshop on Quantum Optics
  • Place of Presentation: KTH, Stockholm, Sweden
• [Presentation] Non-classical Interference Between Two Telecom Photons with Wavelength Conversion
  • Author(s): T. Kobayashi, R. Ikuta, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, N. Imoto
  • Organizer: The 10th Conference on Lasers and Electro-Optics Pacific Rim, and The 18th OptoElectronics and Communications Conference
  • Place of Presentation: Kyoto International Conference Center, Kyoto, Japan
• [Presentation] Observation of converted and unconverted lights preserving phase information
  • Author(s): R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, N. Imoto
  • Organizer: The International Workshop on New Science and Technologies using Entangled Photons
  • Place of Presentation: Osaka University, Japan
• [Presentation] Experimental extraction of entangled photon pair at a telecom wavelength
  • Author(s): Y. Tsujimoto, D. Katsuse, M. Ando, R. Ikuta, T. Yamamoto, M. Koashi, N. Imoto
  • Organizer: The International Workshop on New Science and Technologies using Entangled Photons
  • Place of Presentation: Osaka University, Japan
• [Presentation] Non-classical interference between two telecom light pulses converted by difference-frequency generation
  • Author(s): T. Kobayashi, R. Ikuta, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, N. Imoto
  • Organizer: The International Workshop on New Science and Technologies using Entangled Photons
  • Place of Presentation: Osaka University, Japan
• [Presentation] Observation of slow and fast light in a whispering gallery mode microtoroid resonator
  • Author(s): M. Asano, S. K. Ozdemir, R. Ikuta, T. Yamamoto, N. Imoto, L. Yang
  • Organizer: The 12th Asia Pacific Physics Conference (APPC12)
  • Place of Presentation: International Conference Hall, Makuhari Messe, Chiba, Japan
• [Presentation] The HOM interference between independent telecom light pulses frequency-down-converted by difference-frequency generation
  • Author(s): R. Ikuta, T. Kobayashi, H. Kato, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, N. Imoto,
  • Organizer: 13th Asian Quantum Information Science Conference (AQIS 2013)
  • Place of Presentation: The Institute of Mathematical Sciences Taramani, Chennai, India
• [Presentation] A ferro-spin filter for photonic polarization qubits
  • Author(s): 生田力三，Sahin K. Ozdemir，Mark Tame，田嶌俊之，山本俊，小芦雅斗，井元信之
  • Organizer: 第28回量子情報技術研究会
  • Place of Presentation: 北海道大学 札幌キャンパス
• [Presentation] 可視-通信波長光子対を用いた非古典的干渉の観測
  • Author(s): 逵本吉朗，勝瀬大祐，安藤誠，生田力三，山本俊，小芦雅斗，井元信之
  • Organizer: 第28回量子情報技術研究会
  • Place of Presentation: 北海道大学 札幌キャンパス
• [Presentation] 単一光子の波長変換を利用した量子操作
  • Author(s): 生田力三，山本俊，小芦雅斗，井元信之
  • Organizer: 電子通信学会2013年ソサイエティ大会
  • Place of Presentation: 福岡工業大学
  • Invited
• [Presentation] 可視-通信波長光子対を用いたエンタングルメント抽出実験
  • Author(s): 逵本吉朗，勝瀬大祐，安藤誠，生田力三，山本俊，小芦雅斗，井元信之
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 徳島大学
• [Presentation] 分極反転デバイスの量子中継への応用
  • Author(s): 生田力三、山本俊、小芦雅斗、井元信之
  • Organizer: 第61回応用物理学会春季学術講演会
  • Place of Presentation: 青山学院大学 相模原キャンパス
  • Invited
• [Presentation] 測定装置無依存量子鍵配送における多光子放出イベントからの鍵抽出の安全性について
  • Author(s): 水谷明博,玉木潔,生田力三,山本俊,井元信之
  • Organizer: 第69回日本物理学会春季大会
  • Place of Presentation: 東海大学 湘南キャンパス
• [Presentation] 4量子ビット局所系を用いた分散型量子計算
  • Author(s): 藤井啓祐，山本俊，小芦雅斗，井元信之
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学 東広島キャンパス
• [Presentation] 可視域から通信波長帯へ周波数下方変換された二光子の非古典的干渉の観測
  • Author(s): 生田力三，小林俊輝，加藤大織，三木茂人，山下太郎，寺井弘高，藤原幹生，山本俊，小芦雅斗，佐々木雅英，王鎮，井元信之
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学 東広島キャンパス
• [Presentation] 光でつなぐ量子ネットワーク
  • Author(s): 山本俊
  • Organizer: 平成24 年度 総研大学術交流会
  • Place of Presentation: 総合研究大学院大学 葉山キャンパス
  • Invited
• [Presentation] 通信波長帯へ周波数下方変換された二光子における非古典的干渉の観測
  • Author(s): 加藤大織、生田力三、小林俊輝、三木茂人、山下太郎、寺井弘高、藤原幹生、山本俊、小芦雅斗、佐々木雅英、王鎮、井元信之
  • Organizer: 第27回量子情報技術研究会（QIT27）
  • Place of Presentation: 慶應義塾大学 日吉キャンパス
• [Presentation] A Photonic Quantum Interface for Visible-to-Telecommunication Wavelength Conversion
  • Author(s): T. Yamamoto, R. Ikuta, M. Koashi, N. Imoto
  • Organizer: IEEE PHOTONICS CONFERENCE 2012
  • Place of Presentation: Hyatt Regency San Francisco Airport, USA
  • Invited
• [Presentation] Dicke状態の拡張に必要な局所操作
  • Author(s): 小林俊輝, 生田力三, シャヒン・カヤ・オズデミル, 山本俊, 小芦雅斗, 井元信之
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学
• [Presentation] On the robustness of quantum communication based on decoherence-free subspace using counter propagating weak coherent laser light
  • Author(s): Hideotoshi Kumagai, Takashi Yamamoto, Masato Koashi and Nobuyuki Imoto
  • Organizer: International Conference on Quantum Foundation and Technology (ICQFT 2012)
  • Place of Presentation: Dunhuang Hotel, Dunhuang, China
• [Presentation] A distributed architecture for scalable quantum computation with realistically noisy devices
  • Author(s): Kieuske Fujii, Takashi Yamamoto, Masato Koashi, and Nobuyuki Imoto
  • Organizer: DYCE International Workshop
  • Place of Presentation: Kussharo Prince Hotel, Hokkaido, Japan
• [Presentation] High-fidelity frequency down-conversion of visible entangled photon pairs with superconducting single-photon detectors
  • Author(s): R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, N. Imoto
  • Organizer: 11th International Conference on Quantum Communication, Measurement, and Computing (QCMC 2012)
  • Place of Presentation: Vienna University of Technology, Vienna, Austria
• [Presentation] Fault-tolerant quantum computation and communication on a distributed 2D array of small local systems
  • Author(s): Kieuske Fujii, Takashi Yamamoto, Masato Koashi, and Nobuyuki Imoto
  • Organizer: 11th International Conference on Quantum Communication, Measurement, and Computing (QCMC 2012)
  • Place of Presentation: Vienna University of Technology, Vienna, Austria
• [Presentation] High-fidelity wavelength conversion of a quantum state with a superconducting single photon detector
  • Author(s): R. Ikuta, H. Kato, Y. Kusaka, S. Miki, T. Yamashita, H. Terai, M. Fujiwara, T. Yamamoto, M. Koashi, M. Sasaki, Z. Wang, N. Imoto
  • Organizer: 第７回量子サイバネティクス総括班会議
  • Place of Presentation: ハイアットリージェンシー京都
• [Presentation] A distributed architecture for scalable quantum computation with realistically noisy devices
  • Author(s): K. Fujii, T. Yamamoto, M. Koashi, and N. Imoto
  • Organizer: 第７回量子サイバネティクス総括班会議
  • Place of Presentation: ハイアットリージェンシー京都
• [Presentation] On the robustness of quantum communication based on decoherence-free subspace using counter propagating weak laser light
  • Author(s): Hidetoshi Kumagai, Takashi Yamamoto, Masato Koashi, and Nobuyuki Imoto
  • Organizer: 第９回ＡＭＯ討論会
  • Place of Presentation: 理化学研究所 大河内記念ホール
• [Presentation] A distributed architecture for scalable quantum computation with realistically noisy devices
  • Author(s): K. Fujii, T. Yamamoto, M. Koashi, and N. Imoto
  • Organizer: Mini-workshop on possible implementations of fault-tolerant quantum computing
  • Place of Presentation: Research Center for Advanced Science and Technology (RCAST), Komaba II campus, University of Tokyo
• [Presentation] 光子の量子状態操作と量子情報通信
  • Author(s): 山本俊
  • Organizer: 量子科学フロンティア
  • Place of Presentation: 日本大学理工学部駿河台校舎（御茶ノ水）
  • Invited