Intensity-gradient induced Sisyphus cooling of a single atom in a localized hollow-beam trap
Intensity-gradient induced Sisyphus cooling of a single atom in a localized hollow-beam trap
复制标题
局部空心束陷阱中单个原子的强度梯度诱导西西弗斯冷却
DOI:
10.1088/0953-4075/48/19/195001
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发表时间:
2015-08
影响因子:
1.6
通讯作者:
Yin Jianping
中科院分区:
文献类型:
--
作者:
Yin Yaling;Xia Yong;Ren Ruimin;Du Xiangli;Yin Jianping
In order to realize a convenient and efficient laser cooling of a single atom, we propose a simple and promising scheme to cool a single neutral atom in a blue-detuned localized hollow-beam trap by intensity-gradient induced Sisyphus cooling, and study the dynamic process of the intensity-gradient cooling of a single 87Rb atom in the localized hollow-beam trap by using Monte-Carlo simulations. Our study shows that a single 87Rb atom with a temperature of 120 μK from a magneto-optical trap (MOT) can be directly cooled to a final temperature of 4.64 μK in our proposed scheme. We also investigate the dependences of the cooling results on the laser detuning δ of the localized hollow-beam, the power RP0 of the re-pumping laser beam, the sizes of both the localized hollow-beam and the re-pumping beam, and find that there is a pair of optimal cooling parameters (δ and RP0) for an expected lowest temperature, and the cooling results strongly depend on the size of the re-pumping beam, but weakly depend on the size of the localized hollow-beam. Finally, we further study the cooling potential of our localized hollow-beam trap for the initial temperature of a single atom, and find that a single 87Rb atom with an initial temperature of higher than 1 mK can also be cooled directly to about 6.6 μK.
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影响因子:
8.6
作者:
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通讯作者:
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影响因子:
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作者:
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DOI:
10.1364/josab.26.000080
发表时间:
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影响因子:
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作者:
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通讯作者:
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影响因子:
2.9
作者:
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