Development of atomic magnetometry for precision EDM experiment

• Project/Area Number: 24340052
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Okayama University
• Principal Investigator: YOSHIMI Akihiro 岡山大学, その他部局等, 准教授 (40333314)
• Co-Investigator(Renkei-kenkyūsha): ASAHI Koichi 東京工業大学, 大学院大学院理工学研究科, 教授 (80114354)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥14,690,000 (Direct Cost: ¥11,300,000、Indirect Cost: ¥3,390,000); Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2013: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2012: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
• Keywords: 永久電気双極子モーメント / 高感度磁力計 / 非線形磁気光学効果 / 原子磁力計 / 電気双極子モーメント / 核スピンメーザー / 時間反転対称性

Outline of Final Research Achievements

The high-sensitive magnetometer was developed for search of electric dipole moment which indicates direct evidence of time revearsal symmetry. Rubidium atoms were confined in a glass cell whose inner surface was coated with paraffin. The cell was irradiated by a single frequency laser beam and the rotation of beam polarization after passing the cell was analyzed to probe the magnetic field. The magnetic sensitivity of μG/√Hz was achieved, and the shot-noise limit of 30 pG/√Hz was evaluated. This paved the way for introducing this type of magnetometry in EDM experiments.

Research Products

• [Journal Article] Experimental search for the electron electric dipole moment with laser cooled francium atoms (2015)
  • Author(s): T. Inoue et al.
  • Journal Title: Hyperfine Interact. Volume: 231 Issue: 1-3 Pages: 157-162
  • DOI: 10.1007/s10751-014-1100-1
  • Peer Reviewed / Open Access
• [Journal Article] EDM measurement in 129Xe atom using dual active feedback nuclear spin maser (2015)
  • Author(s): T. Sato, Y. Ichikawa, Y. Ohtomo, Y. Sakamoto, S. Kojima, C. Funayama, T. Suzuki, M. Chikamori, E. Hikota, M. Tsuchiya, T. Furukawa, A. Yoshimi, C. P. Bidinosti, T. Ino, H. Ueno, Y. Matsuo, T. Fukuyama, K. Asahi
  • Journal Title: Hyperfine Interactions Volume: 230 Issue: 1-3 Pages: 147-153
  • DOI: 10.1007/s10751-014-1113-9
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Search for EDM in 129Xe using active spin maser (2014)
  • Author(s): Y. Ichikawaa, T. Sato, Y. Ohtomo, Y. Sakamoto, S. Kojima, T. Suzuki, M. Chikamori, E. Hikota, H. Miyatake, T. Nanao, K. Suzuki, M. Tsuchiya, T. Inoue, T. Furukawa, A. Yoshimi, C. P. Bidinosti, T. Ino, H. Ueno, Y. Matsuo, T. Fukuyama, K. Asahi
  • Journal Title: Proceedings of 7th International Workshop on Fundamental Physics (FPUA2014) Volume: 1 Pages: 20-25
  • NAID: 120006703495
• [Journal Article] Search for Electric Dipole Moment in ^<129>Xe Atom Using a Nuclear Spin Oscillator (2014)
  • Author(s): K. Asahi, Y. Ichikawa, M. Chikamori, Y. Ohtomo, E. Hikota, T. Suzuki, T. Inoue, T. Furukawa, A. Yoshimi, K. Suzuki, T. Nanao, H. Miyatake, M. Tsuchiya, N. Yoshida, H. Shirai, T. Ino, H. Ueno, Y. Matsuo and T. Fukuyama
  • Journal Title: Physics of Particles and Nuclei Volume: 45 Issue: 1 Pages: 199-201
  • DOI: 10.1134/s1063779614010080
  • Peer Reviewed
• [Journal Article] Search for electric dipole moment in 129Xe atom using active nuclear spin maser (2014)
  • Author(s): Y.Ichikawa, T.Furukawa, A.Yoshimi, H.Ueno, Y.Matsuo, T.Fukuyama, K.Asahi, et al
  • Journal Title: EPJ Web of Conf Volume: 66 Pages: 5007-5007
  • DOI: 10.1051/epjconf/20146605007
  • Peer Reviewed
• [Journal Article] Lowfrequency ^<129>Xe nuclear spin oscillator with optical spin detection (2012)
  • Author(s): A.Yoshimi, T.Furukawa, K.Asahi, et al.
  • Journal Title: Phys. Lett Volume: A 376 Issue: 24-25 Pages: 1924-1924
  • DOI: 10.1016/j.physleta.2012.04.043
  • Peer Reviewed
• [Presentation] フランシウムを用いた電子EDM探索に向けたルビジウム磁力計の開発 (2015)
  • Author(s): 内山愛子，井上壮志，青木隆宏，有川裕士，安藤峻，石川泰佑，伊藤正俊，加藤浩， 川村広和，坂本幸祐，早水友洋，原田健一，青木貴稔，旭耕一郎，吉見彰洋，酒見泰寛
  • Organizer: 日本物理学会
  • Place of Presentation: 早稲田大学
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] Search for electron EDM using laser cooled radioactive Fr atom (2014)
  • Author(s): 井上壮志
  • Organizer: Fundamental Physics Using Atoms 2014
  • Place of Presentation: 東京
• [Presentation] Neutrino mass spectroscopy with atoms (2012)
  • Author(s): A. Yoshimi
  • Organizer: 7th International Conference on Fundamental Physics Using Atoms
  • Place of Presentation: 東北大学(仙台)
  • Year and Date: 2012-09-28
• [Presentation] マクロコヒーレンス生成に向けた Xe 準安定状態に関する分光実験
  • Author(s): 吉見彰洋
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 高知大学