Control of electro-weak process by macro-coherence: towards the neutrino mass spectroscopy with atoms or molecules

• Project/Area Number: 15H03660
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Okayama University
• Principal Investigator: Uetake Satoshi 岡山大学, 異分野基礎科学研究所, 准教授 (80514778)
• Co-Investigator(Kenkyū-buntansha): 吉村 太彦 岡山大学, 異分野基礎科学研究所, 教授 (70108447)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000); Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2016: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2015: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
• Keywords: ニュートリノ質量分光 / マクロコヒーレント増幅 / ニュートリノ質量

Outline of Final Research Achievements

Radiative emission of neutrino pair (RENP) from atoms or molecules has been considered a novel tool to determine the yet unknown neutrino parameters. In order for a future RENP experiment, (1) we proceeded detail study of macro-coherent amplification mechanism for developing an experimental method to control higher order　 process of quantum electrodynamics such as two-photon paired superradiance or multiphoton emission; (2) search the best target that has high-density and long coherence time for RENP process. We have succeeded to enhance the emission rate to 18 orders of magnitude in the two-photon emission process by optimizing the experimental parameters. Also we have observed automatic development of coherence in the solid parahydrogen crystal. The coherence seems to increase 10 times longer time duration than the input pulse duration. We developed the excitation laser for Xe gas, which is a suitable candidate for the RENP experiment.

Research Products

• [Journal Article] Vibrational excitation of hydrogen molecules by two-photon absorption and third-harmonic generation (2017)
  • Author(s): Miyamoto Yuki、Hara Hideaki、Hiraki Takahiro、Masuda Takahiko、Sasao Noboru、Uetake Satoshi、Yoshimi Akihiro、Yoshimura Koji、Yoshimura Motohiko
  • Journal Title: Journal of Physics B: Atomic, Molecular and Optical Physics Volume: 51 Issue: 1 Pages: 015401-015401
  • DOI: 10.1088/1361-6455/aa9782
  • Peer Reviewed
• [Journal Article] Frequency dependence of coherently amplified two-photon emission from hydrogen molecules (2017)
  • Author(s): Hideaki Hara, Yuki Miyamoto, Takahiro Hiraki, Takahiko Masuda, Noboru Sasao, Satoshi Uetake, Akihiro Yoshimi, Koji Yoshimura, and Motohiko Yoshimura
  • Journal Title: PHYSICAL REVIEW A Volume: 96 Issue: 6 Pages: 063827-063827
  • DOI: 10.1103/physreva.96.063827
  • NAID: 120006382538
  • Peer Reviewed
• [Journal Article] Effects of initial spatial phase in radiative neutrino pair emission (2017)
  • Author(s): Tanaka Minoru、Tsumura Koji、Sasao Noboru、Uetake Satoshi、Yoshimura Motohiko
  • Journal Title: Physical Review D Volume: 96 Issue: 11 Pages: 1-7
  • DOI: 10.1103/physrevd.96.113005
  • Peer Reviewed / Open Access
• [Journal Article] Vibrational Two-Photon Emission from Coherently Excited Solid Parahydrogen (2017)
  • Author(s): Miyamoto Yuki、Hara Hideaki、Masuda Takahiko、Sasao Noboru、Uetake Satoshi、Yoshimi Akihiro、Yoshimura Koji、Yoshimura Motohiko
  • Journal Title: The Journal of Physical Chemistry A Volume: 121 Issue: 20 Pages: 3943-3951
  • DOI: 10.1021/acs.jpca.7b02011
  • Peer Reviewed
• [Journal Article] Injection-seeded tunable mid-infrared pulses generated by difference frequency mixing (2017)
  • Author(s): Yuki Miyamoto, Hideaki Hara, Takahiko Masuda, Takahiro Hiraki, Noboru Sasao and Satoshi Uetake
  • Journal Title: Jpn. J. Appl. Phys. Volume: 56 Issue: 3 Pages: 032101-032101
  • DOI: 10.7567/jjap.56.032101
  • NAID: 210000147462
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Simultaneous Measurements of Superradiance at Multiple Wavelength from Helium Excited States: II. Analysis. (2016)
  • Author(s): Ohae, C., Harries, J.R., Iwayama, H., Kawaguchi, K., Kuma, S., Miyamoto, Y., Nagasono, M., Nakajima, K., Nakano, I., Shigemasa, E., Sasao, N., Uetake, S., Wakabayashi, T., Yoshimi, A., Yoshimura, K., Yoshimura, M
  • Journal Title: J. Phys. Soc. Jpn. Volume: 85 Issue: 3 Pages: 034301-034301
  • DOI: 10.7566/jpsj.85.034301
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Recent progress of SPAN towards neutrino mass spectroscopy (2016)
  • Author(s): T Masuda, H Hara, Y Miyamoto, N Sasao, M Tanaka, S Uetake, A Yoshimi, K Yoshimura and M Yoshimura
  • Journal Title: Journal of Physics: Conference Series Volume: 718 Pages: 062043-062043
  • DOI: 10.1088/1742-6596/718/6/062043
  • Peer Reviewed / Open Access
• [Journal Article] Externally triggered coherent two-photon emission from hydrogen molecules (2015)
  • Author(s): Y. Miyamoto, H. Hara, T. Masuda, N. Sasao, M. Tanaka, S. Uetake, A. Yoshimi, K. Yoshimura, M. Yoshimura
  • Journal Title: Prog. Theor. Exp. Phys. Volume: 081C01 Issue: 8 Pages: 081C01-081C01
  • DOI: 10.1093/ptep/ptv103
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Radiative emission of neutrino pair free of quantum electrodynamic backgrounds (2015)
  • Author(s): M. Yoshimura, N. Sasao, M. Tanaka
  • Journal Title: Prog. Theor. Exp. Phys. Volume: 053B06 Issue: 5 Pages: 53B06-0
  • DOI: 10.1093/ptep/ptv064
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] ニュートリノ質量分光のためのパラ水素ガスを用いた対向レーザー励起実験 (2018)
  • Author(s): 平木貴宏, 原秀明, 今村慧, 増田孝彦, 宮本祐樹, 笹尾登, 高江洲義太郎, 植竹智, 吉見彰洋, 吉村浩司, 吉村太彦
  • Organizer: 日本物理学会第73回年次大会
• [Presentation] ニュートリノ質量分光へ向けたXeガス対向励起実験の開発 (2018)
  • Author(s): 今村慧, 原秀明, 平木貴宏, 宮本祐樹, 増田孝彦, 岡井晃一, 笹尾登, 佐藤帯子, 高江洲義太郎, 植竹智, 吉見彰洋, 吉村浩司, 吉村太彦
  • Organizer: 日本物理学会第73回年次大会
• [Presentation] Coherence Generation by Counter-Propagating Photons Towards Neutrino Mass Spectroscopy (2018)
  • Author(s): Hideaki HARA
  • Organizer: The 10th International Workshop on Fundamental Physics Using Atoms
  • Int'l Joint Research
• [Presentation] A laser system for control of higher-order QED processes using Xe atoms (2018)
  • Author(s): Obiko SATO
  • Organizer: The 10th International Workshop on Fundamental Physics Using Atoms
• [Presentation] Study on control of higher-order QED processes using Xe atoms (2018)
  • Author(s): Koichi OKAI
  • Organizer: The 10th International Workshop on Fundamental Physics Using Atoms
• [Presentation] Recent study on two-photon emission from coherently-excited parahydrogen (2017)
  • Author(s): Takahiro Hiraki for the SPAN collaboration
  • Organizer: 9th International Workshop on Fundamental Physics Using Atoms
  • Place of Presentation: Kyoto University (Japan)
  • Year and Date: 2017-01-09
  • Int'l Joint Research
• [Presentation] Study on amplified multi-photon emission processes from macroscopically coherent media (2017)
  • Author(s): Takahiko Masuda
  • Organizer: 9th International Workshop on Fundamental Physics Using Atoms
  • Place of Presentation: Kyoto University (Japan)
  • Year and Date: 2017-01-09
  • Int'l Joint Research
• [Presentation] 原子を用いたニュートリノ質量分光のための対向レーザー励起実験の現状 (2017)
  • Author(s): 植竹智, 原秀明, 平木貴宏, 今村慧, 増田孝彦, 宮本祐樹, 岡井晃一, 笹尾登, 高江洲義太郎, 田中実, 津村浩二, 吉見彰洋, 吉村浩司, 吉村太彦
  • Organizer: 日本物理学会2017年秋季大会
• [Presentation] 中赤外光を用いたラダー型励起による水素分子振動準位間のコヒーレンス生成 (2017)
  • Author(s): 原秀明, 平木貴宏, 今村慧, 増田孝彦, 宮本祐樹, 笹尾登, 高江洲義太郎, 植竹智, 吉見彰洋, 吉村浩司, 吉村太彦
  • Organizer: 日本物理学会2017年秋季大会
• [Presentation] Coherent Amplification of Two-Photon Emission from Hydrogen Molecules Towards Neutrino Mass Spectroscopy (2017)
  • Author(s): Hideaki Hara, for the SPAN collaboration
  • Organizer: Atomic Physics Gordon Research Conference
  • Int'l Joint Research
• [Presentation] ニュートリノ質量分光のためのパラ水素対向レーザー励起実験の現状 (2017)
  • Author(s): 平木貴宏, 原秀明, 増田孝彦, 宮本祐樹, 笹尾登, 高江洲義太郎, 植竹智, 吉見彰洋, 吉村浩司, 吉村太彦
  • Organizer: 日本物理学会第72回年次大会
  • Place of Presentation: 大阪大学(大阪府)
• [Presentation] Two-photon emission from coherently excited solid parahydrogen (2016)
  • Author(s): Hideaki Hara, for the SPAN collaboration
  • Organizer: International Conference on Atomic Physics 2016
  • Place of Presentation: Seoul (Korea)
  • Year and Date: 2016-07-24
  • Int'l Joint Research
• [Presentation] FPGAを用いた高速デジタル制御によるトランスファー共振器の周波数安定化 (2016)
  • Author(s): 岡井晃一, 原秀明, 増田孝彦, 宮本祐樹, 笹尾登, 植竹智
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学(石川県)
• [Presentation] 固体パラ水素振動準位を用いたコヒーレント二光子放出の観測 (2016)
  • Author(s): 宮本祐樹, 原秀明, 増田孝彦, 植竹智, 笹尾登, 吉見彰洋, 吉村浩司, 吉村太彦
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学(石川県)
• [Presentation] SPAN実験(原子を用いたニュートリノ質量分光)のための、多光子放出実験の進展 (2016)
  • Author(s): 増田孝彦, 原秀明, 平木貴宏, 宮本祐樹, 笹尾登, 高江洲義太郎, 植竹智, 吉見彰洋, 吉村浩司, 吉村太彦
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 宮崎大学(宮崎県)
• [Presentation] ニュートリノ質量分光に向けたXe原子のコヒーレンス生成 (2016)
  • Author(s): 岩崎達郎, 原秀明, 植竹智, 吉見彰洋, 吉田光宏, 笹尾登, 増田孝彦, 宮本祐樹, 吉村浩司, 吉村太彦
  • Organizer: 日本物理学会第71回年次大会
  • Place of Presentation: 東北学院大学(宮城県)
• [Presentation] SPAN実験（ニュートリノ質量分光実験）のための対向励起実験の進行状況 (2016)
  • Author(s): 増田孝彦, 原秀明, 宮本祐樹, 笹尾登, 田中実, 植竹智, 吉見彰洋, 吉村浩司, 吉村太彦
  • Organizer: 日本物理学会第71回年次大会
  • Place of Presentation: 東北学院大学(宮城県)
• [Presentation] SPAN（原子を用いたニュートリノ質量分光実験）のためのマクロコヒーレント増幅機構の詳細研究III (2015)
  • Author(s): 笹尾登, 植竹智, 原秀明, 増田孝彦, 宮本祐樹, 田中実, 吉見彰洋, 吉村浩司, 吉村太彦
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 大阪市立大学(大阪府)
• [Presentation] SPAN（原子を用いたニュートリノ質量分光実験）のためのマクロコヒーレント増幅機構の詳細研究IV (2015)
  • Author(s): 宮本祐樹, 植竹智, 原秀明, 増田孝彦, 笹尾登, 田中実, 吉見彰洋, 吉村浩司, 吉村太彦
  • Organizer: 日本物理学会2015年秋季大会
  • Place of Presentation: 大阪市立大学(大阪府)
• [Presentation] Coherent Two-Photon Emission Towards Neutrino Mass Spectroscopy using Atoms (2015)
  • Author(s): Hideaki Hara
  • Organizer: Fundamental Physics using Atoms 2015
  • Place of Presentation: Riken, Saitama
  • Int'l Joint Research
• [Presentation] Coherent Two-photon Emission from Hydrogen Molecules (2015)
  • Author(s): Hideaki Hara
  • Organizer: International Conference on Laser Spectroscopy
  • Place of Presentation: Singapore
  • Int'l Joint Research
• [Remarks] 岡山大学異分野基礎科学研究所量子宇宙研究コアwebページ
  • URL: http://www.xqw.okayama-u.ac.jp
• [Remarks] 岡山大学異分野基礎科学研究所量子宇宙研究コアwebページ
  • URL: http://www.xqw.okayama-u.ac.jp/