Quantum information processing with cold Rydberg atoms in an optical lattice

• Project/Area Number: 24340095
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Atomic/Molecular/Quantum electronics
• Research Institution: The University of Electro-Communications
• Principal Investigator: NAKAGAWA Ken'ichi 電気通信大学, 学内共同利用施設等, 教授 (90217670)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000); Fiscal Year 2014: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2013: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000); Fiscal Year 2012: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
• Keywords: レーザー冷却 / 光格子 / リドベルグ原子 / 量子もつれ / 量子シミュレーション / 量子コンピュータ / 量子コンピューター

Outline of Final Research Achievements

In this research project, we have developled experimental apparatus and experimental methods for the quantum information processing with cold Rydberg Rb atoms in an optical lattice. We have realized 1D and 2D optical lattice potential with large lattice spacing using a 2D spatial phase modulator. We have studied developed the loading method of single Rb atom to micro optical traps using the light induced collision. We have developed high power and frequency stabilized 480 nm lasers for the excitation of Rb atoms to Rydberg states.

Research Products

• [Journal Article] Engineering Transport by concatenated maps (2013)
  • Author(s): Torben Schell, Mark Sadgrove, Ken'ichi Nakagawa, and Sandro Wimberger
  • Journal Title: Fluctuaion and Noise Letters Volume: 12 Pages: 134004-134004
  • Peer Reviewed
• [Journal Article] Engineering quantum correlations to enhance transport in cold atoms (2013)
  • Author(s): Mark Sadgrove, Torben Schell, Ken'ichi Nakagawa, and Sandro Wimberger
  • Journal Title: Physical Review A Volume: 87 Issue: 1 Pages: 13631-13631
  • DOI: 10.1103/physreva.87.013631
  • Peer Reviewed
• [Presentation] 空間光位相変調器を用いた光マイクロトラップアレーの実現 (2015)
  • Author(s): 海上智行、田村光、宮本洋子、中川賢一
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学
  • Year and Date: 2015-03-23
• [Presentation] 光誘起衝突を用いた光マイクロトラップ中の原子数制御 (2015)
  • Author(s): 田村光、海上智行、中川賢一
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学
  • Year and Date: 2015-03-23
• [Presentation] Manipulating ultra cold atoms towards the development of quantum technologies (2014)
  • Author(s): Ken'ichi Nakagawa
  • Organizer: The 8th International Conference on Photonics and Applications
  • Place of Presentation: Da Nang city, Vietnam
  • Year and Date: 2014-09-09
  • Invited
• [Presentation] 光マイクロトラップアレーによる単一原子トラップの実現 (2014)
  • Author(s): 田村光、Jun He、海上智行、宮本洋子、中川賢一
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 中部大学
  • Year and Date: 2014-09-09
• [Presentation] Frequency stabilized lasers using an electromagnetically induced transparency of Rb Rydberg atoms in a cell (2014)
  • Author(s): Jun He, Hikaru Tamura, Ken'ichi Nakagawa
  • Organizer: 日本物理学会第69回年回
  • Place of Presentation: 東海大
• [Presentation] 光誘起衝突を用いた光双極子トラップ中の原子制御 (2014)
  • Author(s): 田村光、Jun He、海上智行、中川賢一
  • Organizer: 日本物理学会第69回年回
  • Place of Presentation: 東海大
• [Presentation] 冷却Rb原子を用いた原子干渉計による重力加速度計II (2013)
  • Author(s): 堀憲真，小野田圭吾，渡邉直登，中川賢一
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 徳島大
• [Presentation] 電気光学変調器型光周波数コムを用いたデュアルコム分光II (2013)
  • Author(s): 渡邉直登，北村俊幸，照井李佳，武者満，中川賢一
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 徳島大