| The periodic magnetized cylinder tube for atom guidance： quantized motion analysis |
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| 引用本文： | 李代军,周博,胡正峰,李师群.The periodic magnetized cylinder tube for atom guidance： quantized motion analysis[J].中国物理 B,2003,12(10):1087-1095. |
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| 作者姓名： | 李代军 周博 胡正峰 李师群 |
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| 作者单位： | Department of Physics, Centre for Atomic and Molecular Nanoscience, Tsinghua University, Beijing 100084, China; Key Laboratory of Quantum Information and Measurement, Ministry of Education, Beijing 100084, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant No 19975027) and the State Key Development Program for Basic Research of China (Grant No 001CB309308). |
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| 摘 要： | We have analysed the transport effciency of an atomic waveguide constructed from a periodic axially magnetized hollow tube.We took into consideration the quantized motion of the atom inside the magnetic hollow cylinder tube,which is significant for the transportation of cold atoms.We deduced the quantized motion modes of the atomic waves in the tube by the approximation of infinite potential,which is valid for cold atoms and strong magnetization.For the atomic waveguide with weak magnetization,we have calculated the tunnelling effect of the atomic wave.The adiabatic condition for the motion of cold atoms is discussed.A time orbit potential method for solving the “zero magnetic field problem” is proposed.
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| 关 键 词： | 原子波导 轴向周期磁化空心管 原子光学 量子化运动 冷原子 时间轨道位势方法 |
| 收稿时间： | 2002-12-02 |
The periodic magnetized cylinder tube for atom guidance: quantized motion analysis |
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| Li Dai-Jun,Zhou Bo,Hu Zheng-Feng and Li Shi-Qun.The periodic magnetized cylinder tube for atom guidance: quantized motion analysis[J].Chinese Physics B,2003,12(10):1087-1095. |
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| Authors: | Li Dai-Jun Zhou Bo Hu Zheng-Feng and Li Shi-Qun |
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| Institution: | Department of Physics, Centre for Atomic and Molecular Nanoscience, Tsinghua University, Beijing 100084, China; Key Laboratory of Quantum Information and Measurement, Ministry of Education, Beijing 100084, China |
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| Abstract: | We have analysed the transport efficiency of an atomic waveguide constructed from a periodic axially magnetized hollow tube. We took into consideration the quantized motion of the atom inside the magnetic hollow cylinder tube, which is significant for the transportation of cold atoms. We deduced the quantized motion modes of the atomic waves in the tube by the approximation of infinite potential, which is valid for cold atoms and strong magnetization. For the atomic waveguide with weak magnetization, we have calculated the tunnelling effect of the atomic wave. The adiabatic condition for the motion of cold atoms is discussed. A time orbit potential method for solving the "zero magnetic field problem" is proposed. |
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| Keywords: | atomic waveguide periodic axially magnetized hollow tube time orbit potential |
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