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Eliminating inhomogeneity from an optical lattice potential using interaction between atoms in a mixture of quantum degenerate gases

Research Project

Project/Area Number 21684022
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Atomic/Molecular/Quantum electronics
Research InstitutionThe University of Tokyo

Principal Investigator

INOUYE Shin  東京大学, 大学院・工学系研究科, 准教授 (10401150)

Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥27,820,000 (Direct Cost: ¥21,400,000、Indirect Cost: ¥6,420,000)
Fiscal Year 2010: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2009: ¥21,580,000 (Direct Cost: ¥16,600,000、Indirect Cost: ¥4,980,000)
Keywords量子エレクトロニクス / 冷却原子 / ボース。アインシュタイン凝縮 / 光格子 / DPSSレーザー / ボース・アインシュタイン凝縮
Research Abstract

We succeeded in producing a dual Bose-Einstein Condensate made of rubidium-87 atoms and potassium-41 atoms in an optical dipole trap. In order to have ample optical power for lattice potential, we developed a single frequency diode-pumped solid state (DPSS) laser at 1064nm. Furthermore, by using an optical trap whose wavelength at 809nm, we successfully canceled the gravitational sag difference caused by mass difference between rubidium and potassium atoms. By using interspecies Feshbach resonance, we realized miscible and immiscible mixture of Bose-Einstein Condensates.

Report

(3 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • Research Products

    (7 results)

All 2011 Other

All Presentation (4 results) Remarks (3 results)

  • [Presentation]2011

    • Author(s)
      Shin Inouye
    • Organizer
      School on quantum gases research
    • Place of Presentation
      Pohang (KOREA)
    • Year and Date
      2011-07-20
    • Related Report
      2010 Final Research Report
  • [Presentation] Experiments on ultracold atoms and molecules2011

    • Author(s)
      Shin Inouye
    • Organizer
      School on quantum gases research
    • Place of Presentation
      Pohang, KOREA
    • Year and Date
      2011-07-20
    • Related Report
      2010 Annual Research Report
  • [Presentation]2011

    • Author(s)
      K.Kato, T. Fukuhara, J. Kobayashi, Y. Saito, T. Kishimoto, M. Ueda, and S. Inouye
    • Organizer
      Gordon Research Conference (Atomic Physics)
    • Place of Presentation
      West Dover, VT(米国)
    • Year and Date
      2011-06-29
    • Related Report
      2010 Final Research Report
  • [Presentation] RF spectroscopy of 41K87Rb Feshbach resonance2011

    • Author(s)
      K.Kato, T.Fukuhara, J.Kobayashi, Y.Saito, T.Kishimoto, M.Ueda, S.Inouye
    • Organizer
      Gordon Research Conference (Atomic Physics)
    • Place of Presentation
      West Dover, VT, USA
    • Year and Date
      2011-06-29
    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://ultracold.t.u-tokyo.ac.jp

    • Related Report
      2010 Final Research Report
  • [Remarks]

    • URL

      http://ultracold.t.u-tokyo.ac.jp

    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://ultracold.t.u-tokyo.ac.jp

    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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