Simultaneous trapping of dipolar molecules and atoms : Sympathetic cooling of molecules

• Project/Area Number: 20340105
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Atomic/Molecular/Quantum electronics
• Research Institution: University of Toyama
• Principal Investigator: MORIWAKI Yoshiki 富山大学, 理工学研究部(理学), 教授 (90270470)
• Co-Investigator(Kenkyū-buntansha): ENOMOTO Katsunari 富山大学, 理工学研究部(理学), 准教授 (50452090) ; KAJITA Masatoshi 情報通信研究機構, 新世代ネットワーク研究センター, 主任研究員 (50359030) ; MATSUSHIMA Fusakazu 富山大学, 理工学研究部(理学), 教授 (40142236) ; KOBAYASHI Kaori 富山大学, 理工学研究部(理学), 准教授 (80397166)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000); Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2009: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000); Fiscal Year 2008: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
• Keywords: 原子・分子・量子エレクトロニクス / 冷却分子 / レーザー分光 / マイクロ波分光 / 低温分子 / 低温原子 / 極性分子 / 分子速度セレクター / MOT / 分子トラップ

Research Abstract

We have constructed a helium cryostat with a collision chamber in which molecules are cooled through collisions with cold He gas, and we have confirmed signals from cold molecules laser-ablated from a solid sample. We have constructed quadrupole Stark molecular selector and demonstrated that the cold ND_3 molecules about a couple of Kelvin are selected and guided from ND_3 gas at room temperature. We have constructed a superconductive microwave resonator with a Q-factor of 3x10^5. With these results our research is promising for the realization of cooling and trapping of molecules by use of microwave.

Research Products

• [Journal Article] Estimated accuracies of pure XH^+(X : even isotopes of group II atoms) vibrational transition frequencies : Toward the test of the variance in m_p/m_e (2011)
  • Author(s): M. Kajita, A. Abe, M. Hada, and Y. Moriwaki
  • Journal Title: J. Phys. B : At. Mol. Opt. Phys. Volume: 44 Pages: 25402-25402
• [Journal Article] Estimated accuracies of pure XH^+ (X : even isotopes of group II atoms) vibrational transition frequencies : Toward the test of the variance in m_p/m_e (2011)
  • Author(s): M.Kajita, A.Abe, M.Hada, Y.Moriwaki
  • Journal Title: J.Phys.B : At.Mol.Opt.Phys. Volume: 44 Pages: 25402-25402
  • Peer Reviewed
• [Journal Article] Ab initio study on vibrational dipole moments of XH^+ molecular ions : X= ^<24>Mg, ^<40>Ca, ^<64>Zn, ^<88>Sr, ^<114>Cd, ^<138>Ba, ^<174>Yb, and ^<202>Hg (2010)
  • Author(s): M.Abe, M.Kajita, M.Hada, Y.Moriwaki
  • Journal Title: J.Phys.B : At.Mol.Opt.Phys. Volume: 43 Pages: 245102-245102
  • Peer Reviewed
• [Journal Article] Proposed detection of variation in m_p/m_e using a vibrational transition frequency of a CaH^+ion (2009)
  • Author(s): M. Kajita and Y. Moriwaki
  • Journal Title: J. Phys. B : At. Mol. Opt. Phys. Volume: 42
• [Journal Article] Proposed detection of variation in m_p/m_e using a vibrational transition frequency of a CaH^+ ion (2009)
  • Author(s): M.Kajita, Y.Moriwaki
  • Journal Title: J.Phys.B : At.Mol.Opt.Phys. 42
  • Peer Reviewed
• [Journal Article] Combination of accurate atomic and molecular frequencies for sensitive detection of the m_p/m_e variance (2008)
  • Author(s): M. Kajita
  • Journal Title: Phys. Rev. A Volume: 78
• [Journal Article] Combination of accurate atomic and molecular frequencies for sensitive detection of the mp/me variance (2008)
  • Author(s): M. Kajita
  • Journal Title: Phys. Rev. A 78
  • Peer Reviewed
• [Presentation] 405nm帯のレーザーの開発 (2010)
  • Author(s): 東川優理奈, 鈴木伸明, 溝端宏徳, 長谷川尚紀, 森脇喜紀, 松島房和, 榎本勝成, 小林かおり
  • Organizer: 日本物理学会北陸支部学術講演会
  • Place of Presentation: 富山市
  • Year and Date: 2010-11-27
• [Presentation] BaFとYbF分子のレーザー冷却の可能性 (2010)
  • Author(s): 長谷川博史, 野口拡, 平崎雄祐, 小林かおり, 松島房和, 森脇喜紀, 榎本勝成
  • Organizer: 日本物理学会北陸支部学術講演会
  • Place of Presentation: 富山市
  • Year and Date: 2010-11-27
• [Presentation] PRECISE MEASUREMENT OF VIBRATIONAL TRANSITION FREQUENCIES OF MOLECULAR IONS (2010)
  • Author(s): M. Kajita, A. Abe, and Y. Moriwaki
  • Organizer: Asia Pasific Radio Science Conference(AP-RASC' 10)
  • Place of Presentation: Toyama
• [Presentation] Control of translational motion of polar molecules by using superconducting microwave resonators (2010)
  • Author(s): K. Enomoto, Y. Moriwaki, W. Hardy, O. Nourbakhsh, P. Djuricauin, and T. Momose
  • Organizer: Proceedings of 4th international workshop on Fundamental Phyiscs Using Atoms
• [Presentation] Proposed detection of the variance in m_p/m_e via the precise measurement of vibrational transition frequencies of XH^+(X=^24<Mg>,^40<Ca>,^64<Zn>, and^114<Cd>) (2010)
  • Author(s): M. Kajita, A. Abe, and Y. Moriwaki
  • Organizer: Intenational Conference on Atomic Physics 2010(ICAP2010)
  • Place of Presentation: Cairns, Tropical North Queensland, Australia
• [Presentation] Ab initio study of ground and low-lying excited states of CaH$^+$ molecule (2010)
  • Author(s): Minori Abe, Masatoshi Kajita, Yoshiki Moriwaki, Masahiko Hada
  • Organizer: Intenational Conference on Atomic Physics 2010 (ICAP2010)
  • Place of Presentation: Cairns, Tropical North Queensland, Australia
• [Presentation] Proposed detection of the variance in $m_p/m_e$ via the precise measurement of vibrational transition frequencies of XH$^+$ (X=$^{24}$Mg, $^{40}$Ca, $^{64}$Zn, and $A{114}$Cd) (2010)
  • Author(s): M.-Kajita, A.-Abe, Y.-Moriwaki
  • Organizer: Intenational Conference on Atomic Physics 2010 (ICAP2010)
  • Place of Presentation: Cairns, Tropical North Queensland, Australia
• [Presentation] PRECISE MEASUREMENT OF VIBRATIONAL TRANSITION FREQUE NCIES OF MOLECULAR IONS (2010)
  • Author(s): M.-Kajita, A.-Abe, Y.-Moriwaki
  • Organizer: Asia Pasific Radio Science Conference (AP-RASC'10)
  • Place of Presentation: Toyama
• [Presentation] Ab initio study of ground and low-lying excited states of CaH$^+$ molecule (2010)
  • Author(s): Minori Abe, Masatoshi Kajita, Yoshiki Moriwaki, Masahiko Hada
  • Organizer: The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem 2010)
  • Place of Presentation: Honolulu, Hawaii, USA
• [Presentation] 分子のヘリウムバッファーガス冷却装置の開発 (2009)
  • Author(s): 野口拡、溝端宏徳、長谷川博史、榎本勝成, 小林かおり、松島房和、森脇喜紀
  • Organizer: 日本物理学会北陸支部学術講演会
  • Place of Presentation: 金沢大学
  • Year and Date: 2009-12-05
• [Presentation] 四重極速度セレクターの設計と電場解析 (2009)
  • Author(s): 溝端宏徳、鈴木伸明、長谷川尚紀、野口拡、祐安伸佳、常本真嗣、森脇喜紀、榎本勝成、松島房和、小林かおり
  • Organizer: 日本物理学会北陸支部学術講演会
  • Place of Presentation: 金沢大学
  • Year and Date: 2009-12-05
• [Presentation] Rb原子のレーザー冷却IV (2009)
  • Author(s): 小山達也、風間亮人、寶田真也、榎本勝成、森脇喜紀、松島房和
  • Organizer: 日本物理学会北陸支部学術講演会
  • Place of Presentation: 金沢大学
  • Year and Date: 2009-12-05
• [Presentation] CaH^+とCa^+の同時空間捕捉 (2009)
  • Author(s): 伊井岳雅、三輪祥之、橋場一志、榎本勝成、森脇喜紀、松島房和
  • Organizer: 日本物理学会北陸支部学術講演会
  • Place of Presentation: 金沢大学
  • Year and Date: 2009-12-05
• [Presentation] Detection of variance in m_p/m_e using molecular vibrational transition frequencies (2009)
  • Author(s): M. Kajita and Y. Moriwaki
  • Organizer: Colorado Cold Molecule Workshop
  • Place of Presentation: University of Colorado, USA
  • Year and Date: 2009-07-16
• [Presentation] マイクロ波を用いた分子ビームのコリメーション (2009)
  • Author(s): 鍬田雄介、小川俊輔、野口拡、小林かおり、松島房和、森脇喜紀、榎本勝成
  • Organizer: 分子分光研究会
  • Place of Presentation: 富山大学
  • Year and Date: 2009-05-15
• [Presentation] 分子イオンの精密分光に向けたイオントラップ (2009)
  • Author(s): 伊井岳雅, 永田正浩, 榎本勝成, 森脇喜紀, 松島房和
  • Organizer: 分子分光研究会
  • Place of Presentation: 富山大学
  • Year and Date: 2009-05-15
• [Presentation] 分子イオンの純回転遷移のテラヘルツ分光 (2009)
  • Author(s): 松島房和、米津朋尚、高木光司郎、森脇喜紀、天埜堯義
  • Organizer: 分子分光研究会
  • Place of Presentation: 富山大学
  • Year and Date: 2009-05-15
• [Presentation] CaH^+分子イオンの振動周波数の精密測定 (2009)
  • Author(s): 梶田雅稔, 森脇喜紀
  • Organizer: 日本物理学会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-29
• [Presentation] H_2D^+分子の遠赤外スペクトルの測定 (2009)
  • Author(s): 米津朋尚, 水野新号, 御厩純一, 林健介, 森脇喜紀, 天埜尭義, 松島房和
  • Organizer: 日本物理学会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-29
• [Presentation] RFトラップを用いたCa^+イオンの空間捕捉 (2009)
  • Author(s): 永田正浩, 伊井岳雅, 榎本勝成, 森脇喜紀, 松島房和
  • Organizer: 日本物理学会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-28
• [Presentation] Trapping of Ca^+ions toward the precision measurement of vibrational transitions of CaH^+molecules (2009)
  • Author(s): Y. Moriwaki, K. Enomoto, F. Matsushima, and M. Kajita
  • Organizer: International Conference on Laser Spectroscopy 2009
  • Place of Presentation: Hokaido, Japan
• [Presentation] Rb原子のレーザー冷却III (2008)
  • Author(s): 東川雅史, 小山達也, 廣瀬史和, 榎本勝成, 森脇喜紀, 松島房和
  • Organizer: 日本物理学会北陸支部学術講演会
  • Place of Presentation: 福井大学
  • Year and Date: 2008-11-29
• [Presentation] 低温Heガス中でのMg-He_nの形成 (2008)
  • Author(s): 笠原圭太, 長谷川尚紀, 溝端宏徳, 森脇喜紀, 松島房和, 森田紀夫
  • Organizer: 日本物理学会北陸支部学術講演会
  • Place of Presentation: 福井大学
  • Year and Date: 2008-11-29
• [Presentation] Ca^+イオンの空間捕捉 (2008)
  • Author(s): 永田正浩, 伊井岳雅, 橋場一志, 榎本勝成, 森脇喜紀, 松島房和
  • Organizer: 日本物理学会北陸支部学術講演会
  • Place of Presentation: 福井大学
  • Year and Date: 2008-11-29
• [Presentation] マイクロ波を用いた極性分子のガイド装置の開発 (2008)
  • Author(s): 鍬田雄介, 浅井宗紀, 小川俊輔, 野口宏, 榎本勝成, 小林かおり, 森脇喜紀
  • Organizer: 日本物理学会北陸支部学術講演会
  • Place of Presentation: 福井大学
  • Year and Date: 2008-11-29
• [Presentation] Variance Measurement of m_p/m_e Using Cold Molecules (2008)
  • Author(s): M. Kajita
  • Organizer: International Conference on Precision Physics of Simple Atomic System
  • Place of Presentation: University of Windsor, Windsor, Canada
  • Year and Date: 2008-07-22
• [Presentation] Variance Measurement of mp/me Using Cold Molecules (2008)
  • Author(s): Masatoshi Kajita
  • Organizer: International Conference on Precision Physics of Simple Atomic System
  • Place of Presentation: University of Windsor, Windsor, Canada
  • Year and Date: 2008-07-22
• [Remarks]
  • URL: http://www.sci.u-toyama.ac.jp/phys/5ken/index.html