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

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.

10 pages, 6+2 figures

References in corpus (17)

• Many-Body Physics with Ultracold Gases
• A High Phase-Space-Density Gas of Polar Molecules
• Quantum liquid droplets in a mixture of Bose-Einstein condensates
• Self-bound droplets of a dilute magnetic quantum liquid
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• Observation of dipole-dipole interaction in a degenerate quantum gas
• Long-lived and transient supersolid behaviors in dipolar quantum gases
• Dual-Species Bose-Einstein Condensate of ${}^{87}$Rb and ${}^{133}$Cs
• Bogoliubov modes of a dipolar condensate in a cylindrical trap
• Feshbach Resonances in an Erbium-Dysprosium Dipolar Mixture
• Production of quantum degenerate mixtures of ytterbium and lithium with controllable inter-species overlap
• Anisotropic polarizability of erbium atoms
• Vortex lattices in binary Bose-Einstein condensates with dipole-dipole interactions
• Spatial separation of rotating binary Bose-Einstein condensate by tuning the dipolar interactions
• Approximate theories for binary magnetic quantum droplets
• Dynamics of a degenerate Cs-Yb mixture with attractive interspecies interactions
• New opportunites for interactions and control with ultracold lanthanides

Cited by in corpus (26)

• Supersolidity in ultra-cold dipolar gases
• Alternating-domain supersolids in binary dipolar condensates
• Catalyzation of supersolidity in binary dipolar condensates
• Spectrum and quench-induced dynamics of spin-orbit coupled quantum droplets
• Stability and dynamics of nonlinear excitations in a two-dimensional droplet-bearing environment
• Metastable Patterns in one- and two-component dipolar Bose-Einstein Condensates
• Two-dimensional miscible-immiscible supersolid and droplet crystal state in a homonuclear dipolar bosonic mixture
• Excitations of a binary dipolar supersolid
• Self-bound crystals of antiparallel dipolar mixtures
• Spin rotons and supersolids in binary antidipolar condensates
• Stability of a flattened dipolar binary condensate: emergence of the spin roton
• Crossing the superfluid-supersolid transition of an elongated dipolar condensate
• Phases and dynamics of quantum droplets in the crossover to two-dimensions
• Tunneling dynamics of ${}^{164}$Dy supersolids and droplets
• Induced supersolidity in a Dy-Er mixture
• Localization and splitting of a quantum droplet with a potential defect
• Droplet-gas phases and their dynamical formation in particle imbalanced mixtures
• Long lifetime supersolid in a two-component dipolar Bose-Einstein condensate
• Spatially-periodic states in a strongly dipolar ${}^{164}$Dy-${}^{162}$Dy mixture
• Dynamical signatures of superfluidity and shear rigidity in different phases of a dipolar Bose-Einstein condensate
• Roton-mediated soliton bound states in binary dipolar condensates
• Finite-frequency normal and superfluid drag effects in two-component atomic Bose-Einstein condensates
• Vortex dynamics in rotating dipolar supersolids across Josephson and self-trapping regimes
• Low-field Feshbach resonances and three-body losses in a fermionic quantum gas of ${}^{161}$Dy
• Quasiparticle spectra of mixtures of dipolar and non-dipolar condensates at zero and finite temperatures
• Van der Waals coefficients for interactions of dysprosium and erbium atoms with alkali-metal and alkaline-earth-metal atoms