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arXiv · 2110.15247

Shell-shaped Bose-Einstein condensates realized with dual-species mixtures

A. Wolf·P. Boegel·M. Meister·A. Balaž·N. Gaaloul·M. A. Efremov
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Abstract

Ultracold quantum gases confined in three-dimensional bubble traps are promising tools for exploring many-body effects on curved manifolds. As an alternative to the conventional technique of radio-frequency dressing, we propose to create such shell-shaped Bose-Einstein condensates in microgravity based on dual-species atomic mixtures and we analyze their properties as well as the feasibility to realize symmetrically filled shells. Beyond similarities with the radio-frequency dressing method as in the collective-excitation spectrum, our approach has several natural advantages like the robustness of the created quantum bubbles and the possibility to magnify shell effects through an interaction-driven expansion.

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A. Wolf, P. Boegel, M. Meister, A. Balaž, N. Gaaloul, M. A. Efremov. 2021-10-28. Shell-shaped Bose-Einstein condensates realized with dual-species mixtures. https://doi.org/10.1103/physreva.106.013309

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