用（^textbf{6}\）Li 和（^textbf{133}\）Cs 原子的超冷混合物研究异核艾菲莫夫效应的实验平台

IF 1.7 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Few-Body Systems Pub Date : 2024-11-29 DOI:10.1007/s00601-024-01971-9

Eleonora Lippi, Manuel Gerken, Stephan Häfner, Marc Repp, Rico Pires, Michael Rautenberg, Tobias Krom, Eva D. Kuhnle, Binh Tran, Juris Ulmanis, Bing Zhu, Lauriane Chomaz, Matthias Weidemüller

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引用次数: 0

摘要

我们介绍了一种实验装置，它能够在光学捕获的超冷混合物（(^6\)Li/(^{133}/)Cs）中观测异核埃菲莫夫效应，并对相互作用进行高分辨率控制。由四个交错的螺旋线圈组成的紧凑型双种泽曼慢速器可以在锂或铯的两种优化配置之间快速切换，并提供高效的顺序加载到它们各自的 MOT 中。通过基于物种选择性捕获的双色光学捕获方案，我们制备出了低（100 nK）的（{1（times 10^{4}}）铯原子和（{7（times 10^{3}}））锂原子的混合物。高度稳定的磁场允许进行高分辨率的原子损耗光谱分析，并能分辨出几十毫高斯的损耗分裂特征。通过这些特征，可以对艾菲莫夫效应进行详细研究。

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An Experimental Platform for Studying the Heteronuclear Efimov Effect with an Ultracold Mixture of \(^\textbf{6}\)Li and \(^\textbf{133}\)Cs Atoms

We present the experimental apparatus enabling the observation of the heteronuclear Efimov effect in an optically trapped ultracold mixture of \(^6\)Li-\(^{133}\)Cs with high-resolution control of the interactions. A compact double-species Zeeman slower consisting of four interleaving helical coils allows for a fast-switching between two optimized configurations for either Li or Cs and provides an efficient sequential loading into their respective MOTs. By means of a bichromatic optical trapping scheme based on species-selective trapping we prepare mixtures down to 100 nK of \({1\times 10^{4}}\) Cs atoms and \({7\times 10^{3}}\) Li atoms. Highly stable magnetic fields allow high-resolution atom-loss spectroscopy and enable to resolve splitting in the loss feature of a few tens of milligauss. These features allowed for a detailed study of the Efimov effect.

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来源期刊

Few-Body Systems 物理-物理：综合

CiteScore

2.90

自引率

18.80%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal Few-Body Systems presents original research work – experimental, theoretical and computational – investigating the behavior of any classical or quantum system consisting of a small number of well-defined constituent structures. The focus is on the research methods, properties, and results characteristic of few-body systems. Examples of few-body systems range from few-quark states, light nuclear and hadronic systems; few-electron atomic systems and small molecules; and specific systems in condensed matter and surface physics (such as quantum dots and highly correlated trapped systems), up to and including large-scale celestial structures. Systems for which an equivalent one-body description is available or can be designed, and large systems for which specific many-body methods are needed are outside the scope of the journal. The journal is devoted to the publication of all aspects of few-body systems research and applications. While concentrating on few-body systems well-suited to rigorous solutions, the journal also encourages interdisciplinary contributions that foster common approaches and insights, introduce and benchmark the use of novel tools (e.g. machine learning) and develop relevant applications (e.g. few-body aspects in quantum technologies).