Experimental demonstration of quantum shutter

• Project/Area Number: 21740296
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Atomic/Molecular/Quantum electronics
• Research Institution: Hokkaido University
• Principal Investigator: OKAMOTO Ryo Hokkaido University, 電子科学研究所, 助教 (10435951)
• Project Period (FY): 2009 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
• Keywords: 量子情報 / 量子ゲート / 光子 / パラメトリック下方変換

Research Abstract

The objective of this research is the demonstration of quantum shutter. Only one quantum shutter can reflect a photon which is in the quantum superposition state over multiple slits. It shed new light on non-locality of quantum mechanics. We realized quantum shutter effect by combining quantum gates. Using the constructed system, we have obtained experimental results which prove the quantum shutter effect.

Research Products

• [Journal Article] Quantum lithography under imperfect conditions : effects of loss and dephasing on two-photon interference fringes (2011)
  • Author(s): Hideki Fujiwara, Yoshio Kawabe, Ryo Okamoto, Shigeki Takeuchi, Keiji Sasaki
  • Journal Title: Journal of the Optical Society of America B Vol.28 Pages: 422-431
  • Peer Reviewed
• [Journal Article] Phase shift spectra of a fiber-microsphere system at the single photon level (2011)
  • Author(s): Akira Tanaka, Takeshi Asai, Kiyota Toubaru, Hideaki Takashima, Masazumi Fujiwara, Ryo Okamoto, Shigeki Takeuchi
  • Journal Title: Optics Express Vol.19 Pages: 2278-2285
  • NAID: 120002834787
  • Peer Reviewed
• [Journal Article] Quantum lithography under imperfect conditions : effects of loss and dephasing on two-photon interference fringes (2011)
  • Author(s): Hideki Fujiwara
  • Journal Title: Journal of the Optical Society of America B Volume: 28 Pages: 422-431
  • Peer Reviewed
• [Journal Article] Phase shift spectra of a fiber-microsphere system at the single photon level (2011)
  • Author(s): Tanaka Akira
  • Journal Title: Optics Express Volume: 19 Pages: 2278-2285
  • Peer Reviewed
• [Journal Article] Analysis of experimental error sources in a linear-optics quantum gate (2010)
  • Author(s): Tomohisa Nagata, Ryo Okamoto, Holger F.Hofmann, Shigeki Takeuchi
  • Journal Title: New Journal of Physics Vol.12 Pages: 43053-43053
  • Peer Reviewed
• [Journal Article] Analysis of experimental error sources in a linear-optics quantum gate (2010)
  • Author(s): Tomohisa Nagata
  • Journal Title: New Journal of Physics Volume: 12 Pages: 43053-43053
  • Peer Reviewed
• [Journal Article] Realization of a Knill-Laflamme-Milburn controlled-NOT photonic quantum circuit combining effective optical nonlinearities
  • Author(s): Ryo Okamoto, Jeremy L.O'Brien, Holger F.Hofmann, Shigeki Takeuchi
  • Journal Title: Proceedings of the National Academy of Sciences 掲載受理済
  • Peer Reviewed
• [Presentation] Knill-Laflamme-Milburn制御ノットゲートの実現ー高効率な光非線形性に基づく光量子回路 (2010)
  • Author(s): 岡本亮, Jeremy L.O'Brien, Holger F.Hofmann, 竹内繁樹
  • Organizer: 公開シンポジウム「ナノ量子情報エレクトロニクスの進展」
  • Place of Presentation: 東京大学ナノ量子情報エレクトロニクス研究機構 東京都目黒区駒場
  • Year and Date: 2010-12-22
• [Presentation] Knill-Laflamme-Milburn制御ノットゲートの実現-高効率な光非線形性に基づく光量子回路 (2010)
  • Author(s): 岡本亮
  • Organizer: 公開シンポジウム「ナノ量子情報エレクトロニクスの進展」
  • Place of Presentation: 東京大学本郷キャンパス(東京都)
  • Year and Date: 2010-12-22
• [Presentation] Linear optics quantum circuits (2010)
  • Author(s): Ryo Okamoto, Jeremy LO'Brien, Holger F Hofmann, Tomohisa Nagata, Shigeki Takeuchi
  • Organizer: International Conference on Coherent and Nonlinear Optics/Lasers, Applications, and Technologies 2010
  • Place of Presentation: Hotel Korston 1 Yershova street Kazan. Russia
  • Year and Date: 2010-08-26
• [Presentation] Linear optics quantum circuits (2010)
  • Author(s): Ryo Okamoto
  • Organizer: International Conference on Coherent and Nonlinear Optics/Lasers, Applications, and Technologies 2010
  • Place of Presentation: Hotel Korston, Russia(招待講演)
  • Year and Date: 2010-08-26