Two methods to deal with an inhomogenous Rabi frequency in microwave transition
Two methods to deal with an inhomogenous Rabi frequency in microwave transition
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处理微波跃迁中拉比频率不均匀的两种方法
DOI:
10.1088/1674-1056/21/7/070309
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发表时间:
2012-07
影响因子:
1.7
通讯作者:
Wang Yu-Zhu
中科院分区:
文献类型:
--
作者:
Cheng Feng;Wang Yu-Zhu
We analyse the influence of an inhomogenous microwave field on the coherence of atom ensembles. Two methods are proposed to suppress the dephasing generated by the inhomogenous Rabi frequency. One of them is realized by using a spin echo, and the other one is based on the identical spin rotation effect. The calculation results show that the contrast of a signal acquired in experiment can be improved by using the two methods. Their advantages and drawbacks are discussed. We hope they can be used to improve the contrast of experimental signals in situations where microwave fields are very inhomogenous. Finally, we discuss the case of a continuous working microwave field and show that the dipole force raised with the inhomogeneity can be eased by spin flip.
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DOI:
10.1088/1009-1963/11/1/302
发表时间:
2005-06
期刊:
Chinese Physics
影响因子:
--
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影响因子:
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作者:
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