Prospects of Forming High-Spin Polar Molecules from Ultracold Atoms

Prospects of Forming High-Spin Polar Molecules from Ultracold Atoms
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超冷原子形成高自旋极性分子的前景

DOI:
10.1103/physrevx.10.041005
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发表时间:
2020
期刊:
影响因子:
12.5
通讯作者:
Frye M
Frye M
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Frye M

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我们调查Feshbach共振的高自旋原子,如Er和Dy与封闭壳层原子,如Sr和Yb的碰撞,使用耦合通道散射和束缚态计算。我们考虑低各向异性和高各向异性的限制。在这两种机制中,我们发现了许多具有各种宽度的共振。较宽的共振适合于调节原子间的相互作用,而一些较窄的共振非常适合于磁缔合形成高自旋分子。这些分子可能被转移到短程状态,在那里它们将具有大的磁矩和电偶极矩,可以用非常低的电场诱导。这些结果为研究混合量子气体提供了机会,其中一种是偶极的,另一种不是,并为超冷高自旋极性分子的新领域开辟了重要的前景。
We investigate Feshbach resonances in collisions of high-spin atoms such as Er and Dy with closed-shell atoms such as Sr and Yb, using coupled-channel scattering and bound-state calculations. We consider both low-anisotropy and high-anisotropy limits. In both regimes, we find many resonances with a wide variety of widths. The wider resonances are suitable for tuning interatomic interactions, while some of the narrower resonances are highly suitable for magnetoassociation to form high-spin molecules. These molecules might be transferred to short-range states, where they would have large magnetic moments and electric dipole moments that can be induced with very low electric fields. The results offer the opportunity to study mixed quantum gases where one species is dipolar and the other is not and open up important prospects for a new field of ultracold high-spin polar molecules.
DOI: 10.1103/physreva.88.053420
发表时间: 2013
期刊: Physical Review A
影响因子: 2.9
作者:
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