Experimental studies on the macro-coherent amplification mechanism and two-photon paired super-radiance

2013 Fiscal Year Final Research Report

• Project/Area Number: 21244032
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Okayama University
• Principal Investigator: SASAO Noboru 岡山大学, その他部局等, 教授 (10115850)
• Co-Investigator(Kenkyū-buntansha): NANJO Hajime (40419445) ; WAKABAYASHI Tomonari (30273428)
• Co-Investigator(Renkei-kenkyūsha): YOSHIMURA Motohiko (70108447)
• Project Period (FY): 2009-04-01 – 2013-03-31
• Keywords: マクロコヒーランス / 超放射 / 二光子超放射 / ニュートリノ質量分光

Research Abstract

The present research aims at proving experimentally the macro-coherent amplification mechanism that is a new class of coherent and cooperative phenomena similar to the super-radiance.
When such an amplification mechanism works for a two-photon deexcitation process, for example, its rate is expected to be amplified. In our experiment, we prepared the vibrational excited states of hydrogen gas by adiabatic Raman scatterings, and observed the two photon cascade process.
As a result we found that the rate of the observed process is amplified as the initial coherence increases and that its amplification factor agrees with the theoretical expectation. We have thus established the validity of macro-coherent amplification mechanism.

Research Products

• [Journal Article] Production of Ba Metastable State via Super-Radiance (2014)
  • Author(s): C. Ohae, A. Fukumi, S. Kuma, Y. Miyamoto, K. Nakajima, I. Nakano, H. Nanjo, N. Sasao, S. Uetake, T. Wakabayashi, A. Yoshimi, K. Yoshimura, M. Yoshimura
  • Journal Title: Journal of the Physical Society of Japan Volume: Vol.83 Pages: 044301(1-9)
  • DOI: 10.7566/JPSJ.83.044301
  • Peer Reviewed
• [Journal Article] Iodine molecule for neutrino mass spectroscopy : ab initio calculation of spectral rate (2014)
  • Author(s): M.Tashiro, M. Ehara, S. Kuma, Y. Miyamoto, N. Sasao, S. Uetake, M. Yoshimura
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: Vol.2014 Pages: 013B02(1-21)
  • DOI: 10.1093/ptep/ptt118
  • Peer Reviewed
• [Journal Article] Radiative emission of neutrino pair from nucleus and inner core electrons in heavy atoms (2014)
  • Author(s): M. Yoshimura and N. Sasao
  • Journal Title: PHYSICAL REVIEW D Volume: Vol.89(1310.6472(1-10)) Pages: 053013(1-8)
  • Peer Reviewed
• [Journal Article] 4.8 μm difference-frequency generation using a waveguide-PPLN crystal and its application to mid-infrared Lamb-dip spectroscopy (2013)
  • Author(s): S. Kuma, Y. Miyamoto, K. Tsutsumi, N. Sasao, and S. Uetake
  • Journal Title: Opt. Lett Volume: Vol.38 Pages: 2825–2828
  • DOI: 10.1364/OL.38.002825
  • Peer Reviewed
• [Journal Article] Observables in Neutrino Mass Spectroscopy Using Atoms (2013)
  • Author(s): D.N.Dinh, S.T.Petcov, N.Sasao, M.Tanaka and M.Yoshimura
  • Journal Title: Physics Letters B Volume: Vol.719 Pages: 154-163
  • DOI: 10.1016/j.physletb.2013.01.015
  • Peer Reviewed
• [Journal Article] Coherence decay measurement of v=2 vibrons in solid parahydrogen (2013)
  • Author(s): S.Kuma, Y.Miyamoto, K.Nakajima, A.Fukumi, K.Kawaguchi, I.Nakano, N.Sasao, M.Tanaka, J.Tang, T.Taniguchi, S.Uetake, T.Wakabayashi, A.Yoshimi and M.Yoshimura
  • Journal Title: J. Chem. Phys Volume: Vol.138 Pages: 024507(1-6)
  • DOI: 10.1063/1.4773893
  • Peer Reviewed
• [Journal Article] Observation of near infrared emission band systems of small bismuth clusters in solid neon matrix (2013)
  • Author(s): T.Wakabayashi, M.Tomioka, Y.Wada, Y.Miyamoto, J.Tang, K.Kawaguchi, S.Kuma, N.Sasao, H.Nanjo, S.Uetake, M.Yoshimura and I.Nakano
  • Journal Title: The European Physical Journal D Volume: Vol.67 Pages: 36(1-7)
  • DOI: 10.1140/epjd/e2012-30529-x
  • Peer Reviewed
• [Journal Article] Vibronic bands in the HOMO-LUMO excitation of linear polyyne molecules (2013)
  • Author(s): T.Wakabayashi, Y.Wada, N.Iwahara and T.Sato
  • Journal Title: Journal of Physics : Conference Series Volume: Vol.428 Pages: 012004(1-13)
  • DOI: 10.1088/1742/6596/428/1/012004
  • Peer Reviewed
• [Journal Article] Neutrino spectroscopy with atoms and molecules (2012)
  • Author(s): A.Fukumi, S.Kuma, Y.Miyamoto, K.Nakajima, I.Nakano, H.Nanjo, C.Ohae, N.Sasao, M.Tanaka, T.Taniguchi, S.Uetake, T.Wakabayashi, T.Yamaguchi, A.Yoshimi and M.Yoshimura
  • Journal Title: Progress of Theoretical and Experimental Physics (PTEP) Volume: Vol.2012 Pages: 04D002(1-79)
  • DOI: 10.1093/ptep/pts066
  • Peer Reviewed
• [Journal Article] Dynamics of two-photon paired superradiance (2012)
  • Author(s): M.Yoshimura, N.Sasao and M.Tanaka
  • Journal Title: Phys Rev A Volume: Vol.86 Pages: 013812(1-14)
  • DOI: 10.1103/PhysRevA.86.013812
  • Peer Reviewed
• [Journal Article] Photoinduced reaction of methylpolyynes H(C ≡ C)_nCH_3 (n=3-7) and polyyne H(C≡C)_5H with I_2 molecules (2012)
  • Author(s): Y.Wada, K.Koma, Y.Ohnishi, Y.Sasaki and T.Wakabayashi
  • Journal Title: The European Physical Journal D Volume: Vol.66 Pages: 322(1-6)
  • DOI: 10.1140/epjd/e2012-30545-x
  • Peer Reviewed
• [Journal Article] Paired Superradiance Experiments (2012)
  • Author(s): S.Kuma, Y.Miyamoto, C.Ohae, K.Nakajima, A.Fukumi, K.Kawaguchi, T.Momose, I.Nakano, N.Sasao, M.Tanaka, J.Tang, T.Taniguchi, S.Uetake, T.Wakabayashi, T.Yamaguchi, A.Yoshimi, M.Yoshimura and K.Yuasa
  • Journal Title: Proceedings of 5^<th> International Workshop on Fundamental Physics Using Atoms 2011 Volume: Vol.2012 Pages: 37-40
• [Journal Article] Search for Paired Superradiance Using Metastable State of Atomic Barium (2012)
  • Author(s): C.Ohae, A.Fukumi, S.Kuma, K.Nakajima, I.Nakano, N.Sasao, M.Tanaka, S.Uetake, T.Yamaguchi, M.Yoshimura and K.Yuasa
  • Journal Title: Proceedings of 5^<th> International Workshop on Fundamental Physics Using Atoms 2011 Volume: Vol.2012 Pages: 143-145
• [Journal Article] Spectroscopy of HF and HF containing clusters in solid parahydrogen (2011)
  • Author(s): Y.Miyamoto, H.Ooe, S.Kuma, K.Kawaguchi, K.Nakajima, I.Nakano, N.Sasao, J.Tang, T.Taniguchi and M.Yoshimura
  • Journal Title: J.Phys.Chem.A Volume: Vol.115 Pages: 14254-14261
  • DOI: 10.1021/jp207419m
  • Peer Reviewed
• [Journal Article] Light Propagation and Paired Superradiance in Coherent Medium (2011)
  • Author(s): M.Yoshimura
  • Journal Title: Progr. Theor. Phys Volume: Vol.125 Pages: 149-186
  • DOI: 10.1143/PTP.125.149
  • Peer Reviewed
• [Journal Article] Solitons and Precision Neutrino Mass Spectroscopy (2011)
  • Author(s): M.Yoshimura
  • Journal Title: Phys.Lett.B Volume: Vol.699 Pages: 123-128
  • DOI: 10.1016/j.physletb.2011.03.058
  • Peer Reviewed
• [Journal Article] Parity violating observables in radiative neutrino pair emission from metastable atoms (2010)
  • Author(s): M.Yoshimura, A.Fukumi, N.Sasao and T.Yamaguchi
  • Journal Title: Progeress of Theoretical Physics Volume: Vol.123 Pages: 523-532
  • DOI: 10.1143/PTP.123.523
• [Presentation] Dressed-State Approach to the Excitation of He atoms by Intense EUV Laser Fields Followed by Superradiance (2014)
  • Author(s): T.Wakabayashi
  • Organizer: 7^<th> International Workshop on Fundamental Physics Using Atoms
  • Place of Presentation: 日本科学未来館(東京都)
  • Year and Date: 20140314-15
• [Presentation] Neutrino spectroscopy with atoms (2014)
  • Author(s): N.Sasao
  • Organizer: 7^<th> International Workshop on Fundamental Physics Using Atoms
  • Place of Presentation: 日本科学未来館(東京都)
  • Year and Date: 2014-03-14
• [Presentation] Observables in Neutrino Mass Spectroscopy Using Atoms (2013)
  • Author(s): D.N.Dinh, S.T.Petcov,笹尾登,田中実,吉村太彦
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学(広島県)
  • Year and Date: 20130326-29
• [Presentation] バリウム原子準安定状態を用いた対超放射実験III (2013)
  • Author(s): 大饗千彰,植竹智,久間晋,笹尾登,高橋弘紀,田中実,中嶋享,中島優夢,中野逸夫,南條創
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学(広島県)
  • Year and Date: 20130326-29
• [Presentation] 極端紫外自由電子レーザー光による励起He 原子からの分岐超放射の同時測定 (2013)
  • Author(s): 中嶋享,福見敦,岩山洋士,川口建太郎,久間晋,宮本祐樹,中野逸夫,中島優夢,南條創
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学(広島県)
  • Year and Date: 20130326-29
• [Presentation] 固体ネオンマトリックス中におけるビスマスクラスターの近赤外発光スペクトル (2013)
  • Author(s): 若林知成,富岡万貴子,宮本祐樹,久間晋,川口建太郎
  • Organizer: 日本化学会第93春季年会
  • Place of Presentation: 立命館大学びわこ・くさつキャンパス(滋賀県)
  • Year and Date: 2013-03-25
• [Presentation] 活性分子の電子遷移‐振電相互作用とスピン軌道相互作用をめぐって- (2013)
  • Author(s): 若林知成
  • Organizer: 日本分光学会関西支部平成24年度講演会
  • Place of Presentation: 近畿大学(大阪府)
  • Year and Date: 2013-03-04
  • Invited
• [Presentation] Neutrino spectroscopy with atoms and molecules -A general overview- (2013)
  • Author(s): Noboru Sasao
  • Organizer: Interdisciplinary Workshop on Quantum Device-through Mathematical Structure-
  • Place of Presentation: 国立情報学研究所(東京都)
  • Year and Date: 2013-01-15
  • Invited
• [Presentation] バリウム原子準安定状態を用いた対超放射実験II (2012)
  • Author(s): 大饗千彰,植竹智,久間晋,笹尾登,高橋弘紀,田中実,中嶋享,中島優夢,中野逸夫,南條創,福見敦,山口琢也,湯浅一生,吉見彰洋,吉村太彦
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 都産業大学(京都府)
  • Year and Date: 20120911-14
• [Presentation] cw-OPO 赤外レーザーによるCH3 分子のコヒーレント過渡現象の観測 (2012)
  • Author(s): 岡林裕介,唐健,川口建太郎,久間晋,笹尾登,谷口敬,中島享,中野逸夫,宮本祐樹,吉村太彦,金森英人
  • Organizer: 日本化学会西日本大会
  • Place of Presentation: 佐賀大学(佐賀県)
  • Year and Date: 2012-11-10
• [Presentation] Photoinduced reaction of polyynederivatives and iodine molecules (2012)
  • Author(s): Y.Wada, T.Wakabayashi, ほか3 名
  • Organizer: 16^<th> International Symposium on Small Particles and Inorganic Clusters (ISSPIC XVI)
  • Place of Presentation: ルーヴェン・カトリック大学(ベルギー)
  • Year and Date: 2012-07-12
• [Presentation] Spectroscopy of bismuth atoms and clusters embedded in solid neon matrices (2012)
  • Author(s): T.Wakabayashi, ほか9名
  • Organizer: 16^<th> International Symposium on Small Particles and Inorganic Clusters (ISSPIC XVI)
  • Place of Presentation: ルーヴェン・カトリック大学(ベルギー)
  • Year and Date: 2012-07-10
• [Presentation] Diffusion of hydrogen fluoride in solid parahydrogen (2012)
  • Author(s): H.Ooe, Y.Miyamoto, J.Tang, K.Kawaguchi, S.Kuma, K.Nakajima, N.Sasao, T.Taniguchi, I.Nakano and M.Yoshimura
  • Organizer: 67^<th> Ohio State University international symposium on molecular spectroscopy
  • Place of Presentation: Ohio State University (Columbus, USA)
  • Year and Date: 2012-06-18
• [Presentation] Neutrino spectroscopy with atoms (2012)
  • Author(s): Noboru Sasao
  • Organizer: The 25^<th> International Conference on Neutrino Physics and Astrophysics
  • Place of Presentation: 京都テルサ(京都府)
  • Year and Date: 2012-06-18
  • Invited
• [Presentation] 固体パラ水素中のフッ化水素の拡散 (2012)
  • Author(s): 大江裕公,宮本祐樹,唐健,川口建太郎,久間晋,笹尾登,谷口敬,中嶋享,中野逸夫,吉村太彦
  • Organizer: 第12回分子分光研究会
  • Place of Presentation: 上智大学(東京都)
  • Year and Date: 2012-05-19
• [Presentation] 対超放射のダイナミクス (2012)
  • Author(s): 吉村太彦,笹尾登,田中実
  • Organizer: 日本物理学会第67年次大会
  • Place of Presentation: 関西学院大学(兵庫県)
  • Year and Date: 2012-03-27
• [Presentation] バリウム原子準安定状態を用いた対超放射探索実験 (2012)
  • Author(s): 大饗千彰,植竹智,久間晋,笹尾登,田中実,中嶋享,中野逸夫,南條創,福見敦,山口琢也,湯浅一生,吉見彰洋,吉村太彦
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学(兵庫県)
  • Year and Date: 2012-03-27
• [Presentation] 固体ネオンマトリクス中におけるBi 原子およびYb 原子の発光スペクトル (2012)
  • Author(s): 若林知成,富岡万貴子,山口琢也,久間晋,宮本祐樹,中嶋享,植竹智,大饗千彰,川口建太郎,笹尾登,田中実,唐健,中野逸夫,南條創,福見敦,百瀬孝昌,吉見彰洋,吉村太彦
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学(兵庫県)
  • Year and Date: 2012-03-27
• [Presentation] From paired super-radiance to neutrino mass spectroscopy using atoms (2011)
  • Author(s): N.Sasao,A.Fukumi,S.Kuma,K.Nakajima, I.Nakano,H.Nanjo,C.Ohae,S.Sato, T.Taniguchi,T.Wakabayashi,T.Yamaguchi, M.Yoshimura
  • Organizer: XIV International Workshop on"Neutrino Telescopes"
  • Place of Presentation: Venice,Italy
  • Year and Date: 20110315-18
• [Presentation] 分子を利用したニュートリノ質量分光 (2011)
  • Author(s): 吉村太彦,大饗千彰,川口建太郎,久間晋,谷口敬,唐健,中嶋享,中野逸夫,南條創,福見敦,宮本祐樹,百瀬孝昌,笹尾登,若林知成,山口琢也,湯浅一生
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 弘前大学(青森県)
  • Year and Date: 2011-09-18
• [Presentation] Production of Ba meta-stable states via super-radiance (2010)
  • Author(s): N.Sasao,A.Fukumi,K.Nakajima,I.Nakano, H.Nanjo,C.Ohae,S.Sato,T.Taniguchi, T.Yamaguchi,M.Yoshimura
  • Organizer: 22^<nd> International Conference on Atomic Physics
  • Place of Presentation: Cairns, Australia
  • Year and Date: 20100725-30
• [Presentation] Towards neutrino mass spectroscopy with Atoms (2010)
  • Author(s): Noboru Sasao
  • Organizer: The 5^<th> international workshop on "Fundamental Physics Using Atoms"
  • Place of Presentation: Osaka
  • Year and Date: 2010-08-10
• [Remarks]
  • URL: http://www.xqw.okayama-u.ac.jp/research/research_past