Dysprosium dipolar Bose-Einstein condensate with broad Feshbach resonances

Abstract

We produce Bose-Einstein condensates of ${}^{162}$Dy atoms employing an innovative technique based on a resonator-enhanced optical trap that allows efficient loading from the magneto-optical trap and fast evaporation. We characterize the scattering properties of the ultracold atoms for magnetic fields between 6 and 30 G. In addition to the typical chaotic distribution of narrow Feshbach resonances in Lanthanides, we discover two rather isolated broad features at around 22 G and 27 G. A characterization using the complementary measurements of losses, thermalization, anisotropic expansion and molecular binding energy points towards resonances of predominant s-wave character. Such resonances will ease the investigation of quantum phenomena relying on the interplay between dipole and contact interactions.

References in corpus (31)

• Feshbach Resonances in Ultracold Gases
• Bose-Einstein Condensation of Erbium
• Observation of quantum droplets in a strongly dipolar Bose gas
• Observing the Rosensweig instability of a quantum ferrofluid
• Self-bound droplets of a dilute magnetic quantum liquid
• Quantum-fluctuation-driven crossover from a dilute Bose-Einstein condensate to a macro-droplet in a dipolar quantum fluid
• Stabilizing a purely dipolar quantum gas against collapse
• Extended Bose-Hubbard Models with Ultracold Magnetic Atoms
• Observation of Roton Mode Population in a Dipolar Quantum Gas
• Quantum Chaos in Ultracold Collisions of Erbium
• Emergence of chaotic scattering in ultracold Er and Dy
• Observation of low-field Fano-Feshbach resonances in ultracold gases of dysprosium
• Narrow-line magneto-optical trap for erbium
• Scissors mode of dipolar quantum droplets of dysprosium atoms
• s-wave scattering lengths of the strongly dipolar bosons ${}^{162}$Dy and ${}^{164}$Dy
• High-resolution imaging of ultracold fermions in microscopically tailored optical potentials
• Broad universal Feshbach resonances in the chaotic spectrum of Dysprosium atoms
• Controlling interactions between highly-magnetic atoms with Feshbach resonances
• Narrow-line magneto-optical trap for dysprosium atoms
• Bose-Einstein condensation of 162Dy and 160Dy
• Accurate Determination of the Dynamical Polarizability of Dysprosium
• The Efimov effect for three interacting bosonic dipoles
• Anisotropic polarizability of erbium atoms
• Anisotropic expansion of a thermal dipolar Bose gas
• Optical cooling and trapping of highly magnetic atoms: The benefits of a spontaneous spin polarization
• Anisotropy in the Interaction of Ultracold Dysprosium
• Dynamic polarizabilities and magic wavelengths for dysprosium
• Analytical model of overlapping Feshbach resonances
• Optimized Bose-Einstein-condensate production in a dipole trap based on a 1070-nm multifrequency laser: Influence of enhanced two-body loss on the evaporation process
• Anisotropic optical trapping as a manifestation of the complex electronic structure of ultracold lanthanide atoms: the example of holmium
• A new setup for experiments with ultracold Dysprosium atoms

Cited by in corpus (31)

• Observation of a dipolar quantum gas with metastable supersolid properties
• Transient supersolid properties in an array of dipolar quantum droplets
• Dipolar physics: A review of experiments with magnetic quantum gases
• Supersolid symmetry breaking from compressional oscillations in a dipolar quantum gas
• Dipolar Quantum Mixtures of Erbium and Dysprosium Atoms
• Dilute dipolar quantum droplets beyond the extended Gross-Pitaevskii equation
• Evidence of superfluidity in a dipolar supersolid from non-classical rotational inertia
• Observation of vortices and vortex stripes in a dipolar Bose-Einstein condensate
• Creating quantum many-body scars through topological pumping of a 1D dipolar gas
• Roton Excitations in an Oblate Dipolar Quantum Gas
• Production of a degenerate Fermi-Fermi mixture of dysprosium and potassium atoms
• Topological quantum critical points in the extended Bose-Hubbard model
• Sub-unity superfluid fraction of a supersolid from self-induced Josephson effect
• Supersolid stripe crystal from finite-range interactions on a lattice
• Supersolid edge and bulk phases of a dipolar quantum gas in a box
• Supersolid phase of the extended Bose-Hubbard model with an artificial gauge field
• Accurate determination of the scattering length of erbium atoms
• Spatial separation of rotating binary Bose-Einstein condensate by tuning the dipolar interactions
• Anisotropic light-shift and magic-polarization of the intercombination line of Dysprosium atoms in a far-detuned dipole trap
• Staggered Ground States in an Optical Lattice
• Quantum chaos in Feshbach resonances of the ErYb system
• Characterizing the temperature dependence of Fano-Feshbach resonances of Ultracold Polarized Thulium
• Microwave coherent spectroscopy of ultracold thulium atoms
• Thermal Conductivity of an Ultracold Paramagnetic Bose Gas
• New opportunites for interactions and control with ultracold lanthanides
• Probing quantum entanglement from magnetic-sublevels populations: beyond spin squeezing inequalities
• Bose-Einstein condensate as a diagnostic tool for an optical lattice formed by 1064 nm laser light
• Roadmap to vortex nucleation below critical rotation frequency in a dipolar Bose-Einstein condensate
• Blue repulsive potential for dysprosium Bose-Einstein condensates
• Magnetic Moments of Lanthanide van der Waals Dimers
• Factor of 1000 suppression of the depolarization rate in ultracold thulium collisions