Species-selective confinement of atoms dressed with multiple radiofrequencies
Species-selective confinement of atoms dressed with multiple radiofrequencies
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DOI：
10.1088/1361-6455/aa67ce
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发表时间：
2017-01
期刊：
影响因子：
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通讯作者：
E. Bentine;T. Harte;K. Luksch;A. Barker;J. Mur-Petit;B. Yuen;C. Foot
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文献类型：
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作者：
E. Bentine;T. Harte;K. Luksch;A. Barker;J. Mur-Petit;B. Yuen;C. Foot
操纵超冷量子气体混合物的单个组分的方法是许多应用的基本工具，例如杂质物理的直接量子模拟。我们研究了一个方案，其中实现物种选择性控制使用磁势穿着多个射频，利用不同的Landég F -因子的组成原子物种。我们描述了一个混合物打扮与两个频率，原子被限制在谐波电位与可控程度的重叠之间的两个原子物种。然后，这被扩展到一个四射频方案，其中一个物种的双阱电位与另一个物种的单阱重叠。讨论的框架与参数，是适合于一个85 Rb和87 Rb的混合物，但很容易推广到其他组合。
Methods to manipulate the individual constituents of an ultracold quantum gas mixture are essential tools for a number of applications, such as the direct quantum simulation of impurity physics. We investigate a scheme in which species-selective control is achieved using magnetic potentials dressed with multiple radiofrequencies, exploiting the different Landé g F -factors of the constituent atomic species. We describe a mixture dressed with two frequencies, where atoms are confined in harmonic potentials with a controllable degree of overlap between the two atomic species. This is then extended to a four radiofrequency scheme in which a double well potential for one species is overlaid with a single well for the other. The discussion is framed with parameters that are suitable for a 85 Rb and 87 Rb mixture, but is readily generalised to other combinations.