| Evolution of spin-dependent atomic wave packets in a harmonic potential |
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| 作者姓名： | 文灵华 刘敏 孔令波 陈爱喜 詹明生 |
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| 作者单位： | State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China;Centre for Cold Atom Physics, Chinese Academy of Sciences,Wuhan, 430071, China;Graduate School, Chinese Academy of Sciences, Wuhan, 430071, China;State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China;Centre for Cold Atom Physics, Chinese Academy of Sciences,Wuhan, 430071, China;Graduate School, Chinese Academy of Sciences, Wuhan, 430071, China;State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China;Centre for Cold Atom Physics, Chinese Academy of Sciences,Wuhan, 430071, China;Graduate School, Chinese Academy of Sciences, Wuhan, 430071, China;State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China;Centre for Cold Atom Physics, Chinese Academy of Sciences,Wuhan, 430071, China;Graduate School, Chinese Academy of Sciences, Wuhan, 430071, China;State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, China;Centre for Cold Atom Physics, Chinese Academy of Sciences,Wuhan, 430071, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant Nos 10474119 and 10474117),by the National Fundamental Research Programme of China (Grant No001CB309309), and also by funds from the Chinese Academy of Sciences. |
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| 摘 要： | We have investigated theoretically the evolution of spin-dependent atomic wave packets in a harmonic magnetic trapping potential. For a Bose-condensed gas, which undergoes a Mott insulator transition and a spin-dependent transport, the atomic wavefunction can be described by an entangled single-atom state. Due to the confinement of the harmonic potential, the density distributions exhibit periodic decay and revival, which is different from the case of free expansion after switching off the combined harmonic and optical lattice potential.
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| 关 键 词： | 玻色-爱因斯坦凝聚 密度分布 光学晶格自旋 磁俘获 |
| 收稿时间： | 2004-10-10 |
Evolution of spin-dependent atomic wave packets in a harmonic potential |
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| Wen Ling-Hu,Liu Min,Kong Ling-Bo,Chen Ai-Xi and Zhan Ming-Sheng.Evolution of spin-dependent atomic wave packets in a harmonic potential[J].Chinese Physics B,2005,14(4):690-696. |
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| Authors: | Wen Ling-Hu Liu Min Kong Ling-Bo Chen Ai-Xi and Zhan Ming-Sheng |
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| Abstract: | We have investigated theoretically the evolution of spin-dependent atomic wave packets in a harmonic magnetic trapping potential. For a Bose-condensed gas, which undergoes a Mott insulator transition and a spin-dependent transport, the atomic wavefunction can be described by an entangled single-atom state. Due to the confinement of the harmonic potential, the density distributions exhibit periodic decay and revival, which is different from the case of free expansion after switching off the combined harmonic and optical lattice potential. |
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| Keywords: | Bose--Einstein condensate density distribution spin-dependent optical lattice magnetic trap |
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