| A Radio Frequency Field Guide Using Field Induced Adiabatic Potential |
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| 作者姓名： | 颜波 李晓林 柯敏 王育竹 |
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| 作者单位： | Key Laboratory for Quantum Optics, Center for Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 |
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| 基金项目： | Supported by the National Basic Research Programme of China under Grant No 2006CB921202, the National Natural Science Foundation of China under Grant Nos 10334050 and 10474105. |
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| 摘 要： | We study the behaviour of atoms in a field with both static magnetic field and radio frequency （rf） magnetic field. We calculate the adiabatic potential of atoms numerically beyond the usually rotating wave approximation, and it is pointed that there is a great difference between using these two methods. We find the preconditions when RWA is valid. In the extreme of static field almost parallel to rf field, we reach an analytic formula. Finally, we apply this method to 87 Rb and propose a guide based on an rf field on atom chip.
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| 关 键 词： | 无线频率 原子 磁场感应 隔热 |
| 收稿时间： | 2006-1-5 |
| 修稿时间： | 2007-01-05 |
A Radio Frequency Field Guide Using Field Induced Adiabatic Potential |
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| YAN Bo,LI Xiao-Lin,KE Min,WANG Yu-Zhu.A Radio Frequency Field Guide Using Field Induced Adiabatic Potential[J].Chinese Physics Letters,2007,24(5):1260-1263. |
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| Authors: | YAN Bo LI Xiao-Lin KE Min WANG Yu-Zhu |
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| Affiliation: | Key Laboratory for Quantum Optics, Center for Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 |
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| Abstract: | We study the behaviour of atoms in a field with both static magnetic field and radio frequency (rf) magnetic field. We calculate the adiabatic potential of atoms numerically beyond the usually rotating wave approximation, and it is pointed that there is a great difference between using these two methods. We find the preconditions when RWA is valid. In the extreme of static fieldalmost parallel to rf field, we reach an analytic formula. Finally, we apply this method to 87Rb and propose a guide based on an rf field on atom chip. |
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| Keywords: | 42 50 Vk 03 75 Be 32 80 Pj |
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