2017 Fiscal Year Final Research Report
Control of interaction in Bose-Einstein condensates by a dressing field
| Project/Area Number |
15K05233
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Atomic/Molecular/Quantum electronics
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| Research Institution | National Institute of Advanced Industrial Science and Technology (2016-2017)
Gakushuin University (2015) |
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Principal Investigator |
Eto Yujiro 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 主任研究員 (50600003)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | ボース・アインシュタイン凝縮体 / 混和性 / ドレスト場 / スピン混合系 / 非平衡ダイナミクス |
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| Outline of Final Research Achievements |
The purpose of this research is to control atomic Bose-Einstein condensates (BEC) with internal degrees of freedom using microwave and radio frequency wave and to observe non-equilibrium quantum dynamics.
In the experiment of interaction control using the dressing field, spatial nonequilibrium dynamics was observed using two Zeeman levels in spin-1 atoms of 87Rb. It is shown that the phase separation structure occurring at the bare atoms is suppressed by application of the dressing field. In addition, we succeeded in observing nonequilibrium dynamics in the mixture of spin-1 and spin-2 atoms. It is revealed that the magnetic ground state changes by generation of the spinor mixture.
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| Free Research Field |
量子光学
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