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arXiv · 1701.06245

Vortex-core structure in a mixture of Bose and Fermi superfluids

Jian-Song Pan·Wei Zhang·Wei Yi·Guang-Can Guo
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Abstract

We study a single quantized vortex in the fermionic component of a mixture of Fermi superfluid and Bose-Einstein condensate. As the density ratio between the boson and the fermion components is tuned, we identify a transition in the vortex-core structure, across which fermions in the vortex core become completely depleted even in the weak-coupling Bardeen-Cooper-Schrieffer regime. This is accompanied by changes in key properties of the vortex state, as well as by the localization of the Bose-Einstein condensate in the vortex core. The transition in the vortex-core structure can be experimentally probed in Bose-Fermi superfluid mixtures by detecting the size and visibility of the vortices.

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Jian-Song Pan, Wei Zhang, Wei Yi, Guang-Can Guo. 2017-06-22. Vortex-core structure in a mixture of Bose and Fermi superfluids. https://doi.org/10.1103/physreva.95.063614

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