2002 Fiscal Year Final Research Report Summary
The cortical study on origin of super fluidity in ultra-low temperature - Quanturn vortex -
| Project/Area Number |
13640385
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
物性一般(含基礎論)
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| Research Institution | OKAYAMA UNIVERSITY |
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Principal Investigator |
MACHIDA Kazushige Granduate School of Natural Science, Professor, 大学院・自然科学研究科, 教授 (50025491)
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| Project Period (FY) |
2001 – 2002
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| Keywords | Bose-Einstein Condensation / Quantum vortex / spinor BEC / Mermin-Ho vortex / Super fluidity / Critical angular frequency |
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| Research Abstract |
We rave investigated theoretically the origin of super fluidity in Bose-Einstein condensation (BEC) through Quantum vertices. Both scalar and spinor BEC are comparatively studied, focusing on vortex nucleation proceso, possible spin texture and to pological phase engineering via Berry phase. The critical angular frequency for nucleation is favorably compared to existing experiments in Cornell group in JILA. The predicted Mermin-Ho vortex is experimentally valijed by ketierle group in MIT by using 23Na atomic gases.
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