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Control of dynamics and high precision measurement of ultracold atomic wave packet by temporally modulated optical lattice

Research Project

Project/Area Number 26400416
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Atomic/Molecular/Quantum electronics
Research InstitutionThe University of Electro-Communications

Principal Investigator

Watanabe Shinichi  電気通信大学, 大学院情報理工学研究科, 教授 (60210902)

Co-Investigator(Kenkyū-buntansha) 中川 賢一  電気通信大学, レーザー新世代研究センター, 教授 (90217670)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords極低温原子波束 / photoconductivity / ホールダイナミクス / フェルミ原子系 / リドベルグ原子 / 量子シミュレーション / 量子多体系 / 量子もつれ / 光格子とトラップ場
Outline of Final Research Achievements

In the theoretical study, we examined how ultracold atoms captured near the potential minimum in a parabolic trap would behave under the influence of amplitude modulation of the optical lattice. A detailed comparison with the experiments carried out at University of Hamburg showed that attenuation of the hole state in the experiment occurs more rapidly than in the numerical calculation. We found that in a completely isolated lattice system, the hole dynamics has a very long coherence time.
On the experimental side, we aimed to realize the quantum simulation of quantum many-body system using laser-cooled Rb atoms in a micro-light-trap array. We can create a quantum entanglement state involving at most 4 atoms, and we are close to realizing quantum simulation of a quantum-spin system.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (25 results)

All 2016 2015 2014 Other

All Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Acknowledgement Compliant: 3 results) Presentation (20 results) (of which Invited: 3 results) Remarks (1 results)

  • [Journal Article] Dynamics of fermions in an amplitude-modulated lattice2016

    • Author(s)
      Tomotake Yamakoshi, Shinichi Watanabe, Shun Ohgoda, and Alexander P. Itin
    • Journal Title

      Physical Review A

      Volume: 93 Issue: 6

    • DOI

      10.1103/physreva.93.063637

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Highly uniform holographic microtrap arrays for single atom trapping using a feedback optimization of in-trap fluorescence measurements2016

    • Author(s)
      Hikaru Tamura,Tomoyuki Unakami, Jun He, Yoko Miyamoto, and Ken’ichi Nakagawa
    • Journal Title

      Optics Express

      Volume: 24 Issue: 8 Pages: 8132-8141

    • DOI

      10.1364/oe.24.008132

    • Related Report
      2016 Annual Research Report 2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Hyperspherical calculations of ultralow-energy collisions in Coulomb three-body systems2015

    • Author(s)
      Y. Zhou, S. Watanabe, O. I. Tolstikhin, and T. Morishita
    • Journal Title

      Phys. Rev. A

      Volume: 92 Issue: 3

    • DOI

      10.1103/physreva.92.032713

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Wave-packet dynamics of noninteracting ultracold bosons in an amplitude-modulated parabolic optical lattice2015

    • Author(s)
      Tomotake Yamakoshi and Shinichi Watanabe
    • Journal Title

      Physical Review A

      Volume: 91 Issue: 5

    • DOI

      10.1103/physreva.91.052323

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] 光誘起衝突を用いた光マイクロトラップ中への単 一原子ローディングの高効率化2016

    • Author(s)
      山口祐介、田村光、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
      2016-09-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] 単一原子アレー中のリドベ ルグブロッケード観測II2016

    • Author(s)
      田村光、山口祐介、海上智行、竹村直貴、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
      2016-09-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] Exact and semiclassical fermion dynamics in amplitude modulated lattices2016

    • Author(s)
      Tomotake Yamakoshi, Shinichi Watanabe, Shun Ogoda, Alexander P. Itin
    • Organizer
      The 25th International Conference on Atomic Physics (ICAP2016)
    • Place of Presentation
      COEX, Seoul, Korea
    • Year and Date
      2016-07-26
    • Related Report
      2016 Annual Research Report
  • [Presentation] 2色光格子によるスピン偏極フェルミ原子の操作2016

    • Author(s)
      高山雄基、山越智健、大古田駿、渡辺信一
    • Organizer
      第13回AMO討論会
    • Place of Presentation
      理化学研究所 (埼玉県和光市)
    • Year and Date
      2016-06-03
    • Related Report
      2016 Annual Research Report
  • [Presentation] 単一原子アレー中のリドベルグブロッ ケード観測2016

    • Author(s)
      田村光、海上智行、竹村直貴、中川賢一
    • Organizer
      日本物理学会 第71回年次大会
    • Place of Presentation
      東北学院大学泉キャンパス
    • Year and Date
      2016-03-22
    • Related Report
      2015 Research-status Report
  • [Presentation] トランスファー共振器を用いたリドベ ルグ励起光源の周波数安定化2016

    • Author(s)
      海上智行、田村光、竹村直貴、中川賢一
    • Organizer
      日本物理学会 第71回年次大会
    • Place of Presentation
      東北学院大学泉キャンパス
    • Year and Date
      2016-03-22
    • Related Report
      2015 Research-status Report
  • [Presentation] 光格子および調和トラップ中での偏極フェルミ原子気体におけるホールダイナミクス2016

    • Author(s)
      山越智健,大古田駿、Alexander itin、渡辺信一
    • Organizer
      日本物理学会 第71回年次大会
    • Place of Presentation
      東北学院大学泉キャンパス
    • Year and Date
      2016-03-20
    • Related Report
      2015 Research-status Report
  • [Presentation] 光マイクロトラップアレーへの単一原 子ローディング2016

    • Author(s)
      田村光、海上智行、竹村直貴、中川賢一
    • Organizer
      日本物理学会 第71回年次大会
    • Place of Presentation
      東北学院大学泉キャンパス
    • Year and Date
      2016-03-18
    • Related Report
      2015 Research-status Report
  • [Presentation] 冷却リドベルグ87Rb原子集団を用いた非 線形量子光学効果2016

    • Author(s)
      千葉学、竹村直貴、田村光、中川賢一
    • Organizer
      日本物理学会 第71回年次大会
    • Place of Presentation
      東北学院大学泉キャンパス
    • Year and Date
      2016-03-18
    • Related Report
      2015 Research-status Report
  • [Presentation] 87Rb原子のリドベルグ状態励起用 480nm高出力周波数安定化レーザーの開発2016

    • Author(s)
      竹村直貴、田村光、金井大輔、中川賢一
    • Organizer
      日本物理学会 第71回年次大会
    • Place of Presentation
      東北学院大学泉キャンパス
    • Year and Date
      2016-03-18
    • Related Report
      2015 Research-status Report
  • [Presentation] 光格子および調和トラップ中での冷却ボーズ原子励起波束の生成と安定性2015

    • Author(s)
      山越智健,渡辺信一
    • Organizer
      日本物理学 第70回会年次大会 概要集第2分冊21pAG-10
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Research-status Report
  • [Presentation] 光格子の振幅変調による極低温フェルミ原子ガスにおけるホールダイナミクス2015

    • Author(s)
      大古田駿,山越智健,渡辺信一
    • Organizer
      日本物理学 第70回会年次大会 概要集第2分冊21aAG-7
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Research-status Report
  • [Presentation] 光マイクロトラップアレーによる単一原子トラップの実現2015

    • Author(s)
      田村光、Jun He、海上智行、宮本洋子、中川賢一
    • Organizer
      日本物理学会2014年秋季大会 2014/9/9
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Research-status Report
  • [Presentation] 空間光位相変調器を用いた光マイクロトラップアレーの実現2015

    • Author(s)
      海上智行、田村光、宮本洋子、中川賢一
    • Organizer
      日本物理学会第70回年次大会 2015/3/23
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Research-status Report
  • [Presentation] 光誘起衝突を用いた光マイクロトラップ中の原子数制御2015

    • Author(s)
      田村光、海上智行、中川賢一
    • Organizer
      日本物理学会第70回年次大会 2015/3/23
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Research-status Report
  • [Presentation] Non-interacting ultracold atoms in amplitude modulated parabolic optical lattice2015

    • Author(s)
      Shinichi Watanabe
    • Organizer
      International Scientific Spring 2015
    • Place of Presentation
      NCP, Islamabad, Pakistan
    • Year and Date
      2015-03-16 – 2015-03-20
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] Interference substructure in photoelectron spectrum of one-electron negative ion in the stabilization regime2015

    • Author(s)
      Shinichi Watanabe
    • Organizer
      International Scientific Spring 2015
    • Place of Presentation
      NCP, Islamabad, Pakistan
    • Year and Date
      2015-03-16 – 2015-03-20
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] Manipulating ultra cold atoms towards the development of quantum technologies2014

    • Author(s)
      Ken'ichi Nakagawa
    • Organizer
      The 8th International Conference on Photonics and Applications
    • Place of Presentation
      Da Nang city, Vietnam
    • Year and Date
      2014-08-12 – 2014-08-16
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] Dynamics of ultracold atoms in amplitude-modulated parabolic lattices2014

    • Author(s)
      Tomotake Yamakoshi, Shun Ohgoda, Shinichi Watanabe, Alexander Itin
    • Organizer
      THE 24TH INTERNATIONAL CONFERENCE ON ATOMIC PHYSICS (ICAP)
    • Place of Presentation
      Washington, D.C.
    • Year and Date
      2014-08-03 – 2014-08-08
    • Related Report
      2014 Research-status Report
  • [Presentation] 光格子および調和トラップ中の冷却原子気体のダイナミクス2014

    • Author(s)
      山越智健,Alexander Itin,渡辺信一
    • Organizer
      第11回AMO討論会
    • Place of Presentation
      大阪大学
    • Year and Date
      2014-06-06 – 2014-06-07
    • Related Report
      2014 Research-status Report
  • [Remarks] 電気通信大学 渡辺信一 (原子・分子・光) 研究室

    • URL

      http://power1.pc.uec.ac.jp/~shin/Group-WEB/index.html#request

    • Related Report
      2016 Annual Research Report

URL: 

Published: 2014-04-04   Modified: 2018-03-22  

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