Theoretical studies of quantum vortices in Bose-Einstein condensates
| Project/Area Number |
15340121
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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 |
Condensed matter physics II
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| Research Institution | Okayama University |
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Principal Investigator |
MACHIDA K. Okayama University, Graduate school of Natural science, Professor, 自然科学研究科, 教授 (50025491)
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| Project Period (FY) |
2003 – 2005
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| Project Status |
Completed (Fiscal Year 2005)
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| Budget Amount *help |
¥14,100,000 (Direct Cost: ¥14,100,000)
Fiscal Year 2005: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2004: ¥5,600,000 (Direct Cost: ¥5,600,000)
Fiscal Year 2003: ¥7,700,000 (Direct Cost: ¥7,700,000)
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| Keywords | Neutral Fermi atoms / Fesh bachresonena / BCS superfluid / Bogolivbov-de Gennes / Fulde-Ferrell / 量子渦 / ボーズ・アインシュタイン凝縮 / スピナー凝縮 / マーミン・ホー渦 / ケルビン波 / ツカチェンコ波 / 渦格子 |
|---|
| Research Abstract |
Several experimental groups have succeeded in achieving BCS superfluids of neutral atom gases, suchas ^6Li and ^<40>K by utilizing Feshbach resonance. We investigate these superfluids when up spin atom and a own spin atom numbers are unequal by solving Bogoliubov-de Gennes equation under realistic situations. We have found that at zero temperature the ground state can be described by Fulde-Ferrell-Larkin-Ovchinnikov state where the order parameter changes its sign spatially, we constructed a phafe diagram in the plase of number imbalance and temperature.
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Report
(4 results)
Research Products
(22 results)
