We study the fate of an impurity in an ultracold heteronuclear Bose mixture, focusing on the experimentally relevant case of a K-41 - Rb-87 mixture, with the impurity in a K-41 hyperfine state. Our paper provides a comprehensive description of an impurity in a BEC mixture with contact interactions across its phase diagram. We present results for the miscible and immiscible regimes, as well as for the impurity in a self-bound quantum droplet. Here, varying the interactions, we find exotic states where the impurity localizes either at the center or at the surface of the droplet.
Impurity in a heteronuclear two-component Bose mixture / Bighin, G; Burchianti, A; Minardi, F; Macrì, T. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - ELETTRONICO. - 106:2(2022), pp. 023301-1-023301-10. [10.1103/PhysRevA.106.023301]
Impurity in a heteronuclear two-component Bose mixture
Minardi, F;
2022
Abstract
We study the fate of an impurity in an ultracold heteronuclear Bose mixture, focusing on the experimentally relevant case of a K-41 - Rb-87 mixture, with the impurity in a K-41 hyperfine state. Our paper provides a comprehensive description of an impurity in a BEC mixture with contact interactions across its phase diagram. We present results for the miscible and immiscible regimes, as well as for the impurity in a self-bound quantum droplet. Here, varying the interactions, we find exotic states where the impurity localizes either at the center or at the surface of the droplet.File | Dimensione | Formato | |
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