Study of the inter-species interactions in an ultracold dipolar mixture

• URL: http://arxiv.org/abs/2110.09980v1
• Date: Tue, 19 Oct 2021 13:53:35 GMT
• Title: Study of the inter-species interactions in an ultracold dipolar mixture
• Authors: C. Politi, A. Trautmann, P. Ilzh\"ofer, G. Durastante, M. J. Mark, M. Modugno, and F. Ferlaino
• Abstract summary: We experimentally and theoretically investigate the influence of the dipole-dipole interactions (DDIs) on the total inter-species interaction in an erbium-dysprosium mixture. We present a theoretical description for our binary system based on an extended Gross-Pitaevskii (eGP) theory. Our work is a first step towards the investigation of the experimentally unexplored dipolar miscibility-immiscibility phase diagram.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We experimentally and theoretically investigate the influence of the dipole-dipole interactions (DDIs) on the total inter-species interaction in an erbium-dysprosium mixture. By rotating the dipole orientation we are able to tune the effect of the long-range and anisotropic DDI, and therefore the in-trap clouds displacement. We present a theoretical description for our binary system based on an extended Gross-Pitaevskii (eGP) theory, including the single-species beyond mean-field terms, and we predict a lower and an upper bound for the inter-species scattering length $a_{12}$. Our work is a first step towards the investigation of the experimentally unexplored dipolar miscibility-immiscibility phase diagram and the realization of quantum droplets and supersolid states with heteronuclear dipolar mixtures.

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