Quantum statistical effects on a molecular formation in an ultracold temperature regime

• Project/Area Number: 26287090
• 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: Mukaiyama Takashi 電気通信大学, レーザー新世代研究センター, 准教授 (70376490)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000); Fiscal Year 2016: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2015: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000); Fiscal Year 2014: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
• Keywords: レーザー冷却 / イオントラップ / 原子気体 / 極低温化学反応 / 冷却原子気体 / 低温化学反応

Outline of Final Research Achievements

Charge-exchange collisions between ultracold 6Li atoms and 40Ca+ ions are observed in the temperature range of 1mK to 1K. The reaction product of the charge-exchange collision is identified via mass spectrometry. The cross sections of the charge-exchange collisions between 6Li atoms in the ground state and 40Ca+ ions in the ground and metastable excited states are determined. Deliberately excited ion micromotion is used to control collision energy of atoms and ions. The energy dependence of the charge-exchange collision cross section obeys the Langevin model in the temperature range of the current experiment, and the measured magnitude of the cross section is correlated to the internal state of the 40Ca + ions. Revealing the relationship between the charge-exchange collision cross sections and the interaction potentials is an important step toward the realization of the full quantum control of the chemical reactions at an ultralow-temperature regime.

Research Products

• [Int'l Joint Research] Universite Paris-Sud(フランス)
• [Int'l Joint Research]
• [Journal Article] Characterization of charge-exchange collisions between ultracold 6Li atoms and 40Ca+ ions (2017)
  • Author(s): (2)R. Saito, S. Haze, M. Sasakawa, R. Nakai, M. Raoult, H. Da Silva, Jr., O. Dulieu, and T. Mukaiyama
  • Journal Title: Physical Review A Volume: 95 Issue: 3 Pages: 032709-032709
  • DOI: 10.1103/physreva.95.032709
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Creation of p-wave Feshbach molecules in the selected angular momentum states using an optical lattice (2016)
  • Author(s): (1)M. Waseem, Z. Zhang, J. Yoshida, K. Hattori, T. Saito, T. Mukaiyama
  • Journal Title: Journal of Physics B: Atomic, Molecular and Optical Physics Volume: 49 Issue: 20 Pages: 204001-204001
  • DOI: 10.1088/0953-4075/49/20/204001
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] A self-injected, diode-pumped, solid-state ring laser for laser cooling of Li atoms (2015)
  • Author(s): Yudai Miake, Takashi Mukaiyama, Kenneth M. O’Hara, and Stephen Gensemer
  • Journal Title: Review of Scientific Instruments Volume: 86 Issue: 4 Pages: 43113-43113
  • DOI: 10.1063/1.4917558
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Charge-exchange collisions between ultracold fermionic lithium atoms and calcium ions (2015)
  • Author(s): Shinsuke Haze, Ryoichi Saito, Munekazu Fujinaga, and Takashi Mukaiyama
  • Journal Title: Physical Review A Volume: 91 Issue: 3 Pages: 032709-032709
  • DOI: 10.1103/physreva.91.032709
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 極低温原子・イオン系で探求する凝縮系物理と低温衝突過程 (2017)
  • Author(s): 向山敬
  • Organizer: 原子衝突学会セミナー
  • Place of Presentation: 日本大学駿河台キャンパス（東京都・千代田区）
  • Year and Date: 2017-03-27
  • Invited
• [Presentation] チウム原子ーカルシウムイオン間の電荷交換散乱の特性評価 (2016)
  • Author(s): 齋藤了一, 土師慎祐, 笹川瑞樹, 中井良輔, M. Raoult, H. Da. Silva Jr., O. Dulieu, 向山敬
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学（石川県・金沢市）
  • Year and Date: 2016-09-16
• [Presentation] イオン・原子間量子散乱に向けたイオンの振動基底状態冷却 (2016)
  • Author(s): 土師慎祐, 齋藤了一, 笹川瑞樹, 中井良輔, 向山敬
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学（石川県・金沢市）
  • Year and Date: 2016-09-16
• [Presentation] 光周波数コムを用いたカルシウムイオン分光用基準光配信システムの開発 (2016)
  • Author(s): 中信長, 渡邉直登, 土師慎祐, 向山敬, 中川賢一
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学（石川県・金沢市）
  • Year and Date: 2016-09-16
• [Presentation] 6Li原子気体におけるp波contactの測定 (2016)
  • Author(s): 服部敬太, 吉田純, 齋藤勇仁, Muhammad Waseem, 向山敬
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学（石川県・金沢市）
  • Year and Date: 2016-09-15
• [Presentation] 6Li原子気体におけるp波三体衝突係数の温度・磁場依存性評価 (2016)
  • Author(s): 吉田純, 服部敬太, 齋藤勇仁, Waseem Muhammad, 向山敬
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学（石川県・金沢市）
  • Year and Date: 2016-09-15
• [Presentation] Dissociation energy measurement of ultra-cold p-wave Feshbach molecules (2016)
  • Author(s): M. Waseem, Z. Zhang, J. Yoshida, K. Hattori, T. Saito, T. Mukaiyama
  • Organizer: 日本物理学会2016年秋季大会
  • Place of Presentation: 金沢大学（石川県・金沢市）
  • Year and Date: 2016-09-15
• [Presentation] Characterization of charge-exchange collisions between ultracold 6Li atoms and 40Ca+ ions (2016)
  • Author(s): Takashi Mukaiyama
  • Organizer: CEMS Topical Meeting on Cold Atoms
  • Place of Presentation: 理化学研究所（埼玉県・和光市）
  • Year and Date: 2016-06-10
  • Invited
• [Presentation] 極低温原子・イオン系で探求する凝縮系物理と量子技術開発 (2016)
  • Author(s): 向山敬
  • Organizer: 大阪大学基礎工学研究科「電子光科学ゼミナールIII」
  • Place of Presentation: 大阪大学（大阪府・豊中市）
  • Year and Date: 2016-04-20
  • Invited
• [Presentation] Interaction and decay of fermionic atoms near a p-wave Feshbach resonance (2016)
  • Author(s): Takashi Mukaiyama
  • Organizer: The First Beijing-Tokyo Workshop on Ultracold Atomic Gases
  • Place of Presentation: 北京（中国）
  • Year and Date: 2016-04-14
  • Int'l Joint Research / Invited
• [Presentation] 狭線幅遷移を用いた6Li原子のレーザー冷却 (2016)
  • Author(s): 松田優衣, 土師慎祐, 吉田純, 服部敬太, 向山敬
  • Organizer: 日本物理学会
  • Place of Presentation: 東北学院大学（宮城県仙台市）
  • Year and Date: 2016-03-21
• [Presentation] 原子－イオン間電荷交換散乱のエネルギー依存性 (2016)
  • Author(s): 齋藤了一, 土師慎祐, 笹川瑞樹, 中井良輔, 向山敬
  • Organizer: 日本物理学会
  • Place of Presentation: 東北学院大学（宮城県仙台市）
  • Year and Date: 2016-03-21
• [Presentation] レーザー冷却イオン原子混合系で探求する極低温化学反応 (2016)
  • Author(s): 向山敬
  • Organizer: 日本物理学会
  • Place of Presentation: 東北学院大学（宮城県仙台市）
  • Year and Date: 2016-03-19
  • Invited
• [Presentation] 極低温二次元6Li原子気体におけるp波分子生成 (2016)
  • Author(s): 張志琪, Waseem Muhammad, 吉田純, 服部敬太, 齋藤勇仁, 向山敬
  • Organizer: 日本物理学会
  • Place of Presentation: 東北学院大学（宮城県仙台市）
  • Year and Date: 2016-03-19
• [Presentation] Experimental determination of the p-wave contact in an ultracold Fermi gas (2016)
  • Author(s): Takashi Mukaiyama
  • Organizer: 新学術領域研究「トポロジーが紡ぐ物質科学のフロンティア」 第6回集中連携研究会「人工量子系におけるトポロジー」
  • Place of Presentation: 東京大学（東京都）
  • Year and Date: 2016-02-10
  • Invited
• [Presentation] Measurement of Charge-Exchange Collision Cross Section between Li and Ca+ in a temperature range of mK to K (2015)
  • Author(s): Ryoichi Saito, Shinsuke Haze, Mizuki Sasakawa, Kazuki Kyuno, and Takashi Mukaiyama
  • Organizer: Ｔｈｅ Irago conference 2015
  • Place of Presentation: 伊良湖シーパーク＆スパ（愛知県田原市）
  • Year and Date: 2015-10-23
  • Int'l Joint Research
• [Presentation] Measurement of p-wave contact in degenerate Fermi gas of 6Li (2015)
  • Author(s): Jun Yoshida, Keita Hattori, Waseem Muhammad, Zhang Zhiqi, and Takashi Mukaiyama
  • Organizer: Ｔｈｅ Irago conference 2015
  • Place of Presentation: 伊良湖シーパーク＆スパ（愛知県田原市）
  • Year and Date: 2015-10-23
  • Int'l Joint Research
• [Presentation] Collisional properties of laser-cooled atoms and ions (2015)
  • Author(s): Takashi Mukaiyama
  • Organizer: MIPT-UEC joint workshop
  • Place of Presentation: モスクワ（ロシア）
  • Year and Date: 2015-10-22
  • Int'l Joint Research
• [Presentation] Experimental investigation of thermodynamics of identical fermions with p-wave Interactions (2015)
  • Author(s): Keita Hattori, Jun Yoshida, Muhammad Waseem, Zhiqi Zhang, and Takashi Mukaiyama
  • Organizer: MIPT-UEC joint workshop
  • Place of Presentation: モスクワ（ロシア）
  • Year and Date: 2015-10-22
  • Int'l Joint Research
• [Presentation] Creation of p-wave Feshbach molecules in two dimensions (2015)
  • Author(s): Zhang Zhiqi, Waseem Muhammad, Jun Yoshida, Keita Hattori and Takashi Mukaiyama
  • Organizer: MIPT-UEC joint workshop
  • Place of Presentation: モスクワ（ロシア）
  • Year and Date: 2015-10-22
  • Int'l Joint Research
• [Presentation] Investigation of ultracold atom-ion collisions (2015)
  • Author(s): Takashi Mukaiyama
  • Organizer: US-Japan Seminar Many body quantum systems from quantum gases to metrology and information processing
  • Place of Presentation: マディソン（アメリカ）
  • Year and Date: 2015-09-21
  • Int'l Joint Research / Invited
• [Presentation] Measurement of p-wave contact in a degenerate Fermi gas of 6Li (2015)
  • Author(s): Jun Yoshida, Keita Hattori, Muhammad Waseem, Zhiqi Zhang, Takashi Mukaiyama
  • Organizer: US-Japan Seminar Many body quantum systems from quantum gases to metrology and information processing
  • Place of Presentation: マディソン（アメリカ）
  • Year and Date: 2015-09-21
  • Int'l Joint Research
• [Presentation] Property of trapped ions as a local probe of atomic gas (2015)
  • Author(s): Ryoichi Saito, Munekazu Fujinaga, Kazuki Kyuno, Shinsuke Haze, Takashi Mukaiyama
  • Organizer: Division of Atomic, Molecular, and Optical Physics
  • Place of Presentation: コロンバス（アメリカ）
  • Year and Date: 2015-06-08
  • Int'l Joint Research
• [Presentation] 極低温6Li原子気体を用いたp波フェッシュバッハ共鳴近傍のRF分光 (2015)
  • Author(s): 吉田純，服部敬太，向山敬
  • 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] 冷却イオンを用いた原子気体の局所密度測定 (2015)
  • Author(s): 土師慎祐，齋藤了一，藤永宗和，向山敬
  • 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] 極低温中性原子‐イオン混合系の研究とマイクロイオントラップ (2014)
  • Author(s): 向山敬
  • Organizer: マイクロイオントラップに関する講演会
  • Place of Presentation: 大阪大学
  • Year and Date: 2014-12-24
  • Invited
• [Presentation] Collisional properties of ultracold atoms and ions (2014)
  • Author(s): Takashi Mukaiyama
  • Organizer: MIPT-UEC Joint International workshop
  • Place of Presentation: 電気通信大学（調布）
  • Year and Date: 2014-10-17
  • Invited
• [Presentation] 極低温原子とイオンで探究する物理－少数粒子系から凝縮系物理まで－ (2014)
  • Author(s): 向山敬
  • Organizer: プラズマ科学のフロンティア
  • Place of Presentation: 核融合科学研究所（土岐市）
  • Year and Date: 2014-08-06
  • Invited
• [Presentation] Collisional properties of ultracold atoms and ions (2014)
  • Author(s): Takashi Mukaiyama
  • Organizer: Workshop on the intersection of cold-atomic and nuclear physics
  • Place of Presentation: APCTP, Korea
  • Year and Date: 2014-05-12
  • Invited
• [Presentation] Measurement of interaction energy at a p-wave Feshbach resonance (2014)
  • Author(s): Jun Yoshida
  • Organizer: Workshop on the intersection of cold-atomic and nuclear physics
  • Place of Presentation: APCTP, Korea
  • Year and Date: 2014-05-12
• [Presentation] Inelastic collisions between ultracold atoms and ions in a hybrid system (2014)
  • Author(s): Ryoichi Saito
  • Organizer: Workshop on the intersection of cold-atomic and nuclear physics
  • Place of Presentation: APCTP, Korea
  • Year and Date: 2014-05-12