Formation of long-range Rydberg molecules in two-component ultracold gases

Formation of long-range Rydberg molecules in two-component ultracold gases
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双组分超冷气体中长程里德伯分子的形成

DOI:
10.1103/physreva.98.042706
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发表时间:
2018
期刊:
影响因子:
2.9
通讯作者:
Matthew T. Eiles
Matthew T. Eiles
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Matthew T. Eiles

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我们提出了一个全面的研究异质里德堡分子的各种性质,特别强调那些组成的轻碱金属原子,锂,钠,和K。电子-原子散射相移,决定了分子键的强度,在非常低的能量计算,然后使用自旋相关的理论模型来计算准确的里德伯分子势能曲线。通过组合不同碱金属原子的各种性质可获得的宽参数范围通常导致通过一个或两个光子激发方案可获得的杂化电子态。这种异质结分子的分析导致的预测,在超冷混合物中的原子的相对密度和空间分布,可以探测在可控的长度尺度,通过光谱检测这些分子。
We present a comprehensive study of the diverse properties of heteronuclear Rydberg molecules, placing a special emphasis on those composed of the light alkali-metal atoms, Li, Na, and K. Electron-atom scattering phase shifts, which determine the strength of the molecular bond, are calculated at very low energy and then used in a spin-dependent theoretical model to calculate accurate Rydberg molecule potential-energy curves. The wide parameter range accessible by combining the various properties of different alkali-metal atoms often leads to hybridized electronic states accessible via one or two photon excitation schemes. This analysis of heteronuclear molecules leads to a prediction that the relative densities and spatial distributions of atoms in an ultracold mixture can be probed at controllable length scales via spectroscopic detection of these molecules.
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发表时间: 2016-05
期刊: arXiv: Atomic Physics
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