| Project/Area Number |
22340116
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Atomic/Molecular/Quantum electronics
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
WATANABE Shinichi 電気通信大学, 大学院・情報理工学研究科, 教授 (60210902)
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| Co-Investigator(Kenkyū-buntansha) |
SAITO Hiroki 電気通信大学, 大学院・情報理工学研究科, 准教授 (60334497)
KISHIMOTO Tetsuo 電気通信大学, 大学院・情報理工学研究科, 准教授 (70420239)
MORISHITA Toru 電気通信大学, 大学院・情報理工学研究科, 助教 (20313405)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2011: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2010: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
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| Keywords | 極低温分子 / BEC / 量子統計 / ドーナッツ型トラップ / 量子エレクトロニクス / 極低温量子ダイナミクス / ボース・アインシュタイン凝縮 / アト秒物理 |
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| Research Abstract |
Ｗe studied the two-component dilute gas in a toroidal trap theoretically, thus predicting what phenomena would occur. Fixing the initial values of the angular momentum of each component of the dilute gas and varying the interaction strength, we found the occurrence of a nontrivial motion of the components caused by the exchange of angular momentum. At the same time, we advanced the construction of the toroidal trap. As for molecular formation rate, we applied SPSS and ChET methods to evaluate its temperature dependence. The molecular formation rate is strongly affected by the growth of the atomic BEC, pointing out the importance of experiments at temperatures below Tc.
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