Anisotropy induced Feshbach resonances in a quantum dipolar gas of magnetic atoms

Abstract

We explore the anisotropic nature of Feshbach resonances in the collision between ultracold magnetic submerged-shell dysprosium atoms, which can only occur due to couplings to rotating bound states. This is in contrast to well-studied alkali-metal atom collisions, where most Feshbach resonances are hyperfine induced and due to rotation-less bound states. Our novel first-principle coupled-channel calculation of the collisions between open-4f-shell spin-polarized bosonic dysprosium reveals a striking correlation between the anisotropy due to magnetic dipole-dipole and electrostatic interactions and the Feshbach spectrum as a function of an external magnetic field. Over a 20 mT magnetic field range we predict about a dozen Feshbach resonances and show that the resonance locations are exquisitely sensitive to the dysprosium isotope.

5 pages, 4 figures

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• Many-Body Physics with Ultracold Gases
• Theory of ultracold Fermi gases
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• Observation of dipole-dipole interaction in a degenerate quantum gas
• Quantum degenerate dipolar Fermi gas
• Two-color photoassociation spectroscopy of ytterbium atoms and the precise determinations of s-wave scattering lengths
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Cited by in corpus (51)

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• Creating quantum many-body scars through topological pumping of a 1D dipolar gas
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• Observation of collisions between cold Li atoms and Yb${}^{+}$ ions
• Controlling interactions between highly-magnetic atoms with Feshbach resonances
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• Ultracold Heteronuclear Mixture of Ground and Excited State Atoms
• Resonantly Interacting Fermi-Fermi Mixture of ${}^{161}$Dy and ${}^{40}$K
• Spectral statistics of molecular resonances in erbium isotopes: How chaotic are they?
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• Feshbach-Resonance-Enhanced Coherent Atom-Molecule Conversion with Ultra-Narrow Photoassociation Resonance
• Energetics and control of ultracold isotope-exchange reactions between heteronuclear dimers in external fields
• Accurate determination of the scattering length of erbium atoms
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• Properties of strongly dipolar Bose gases beyond the Born approximation
• Magnetically tunable Feshbach resonances in Li+Er
• A Three-Dimensional Optical Lattice of Ytterbium and Lithium Atomic Mixture
• Realization of a Cold Mixture of Fermionic Chromium and Lithium Atoms
• A Hubbard model for ultracold bosonic atoms interacting via zero-point-energy induced three-body interactions
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• Ab initio properties of the ground-state polar and paramagnetic europium-alkali-metal-atom and europium-alkaline-earth-metal-atom molecules
• Prospects for ultracold polar and magnetic chromium-closed-shell-atom molecules
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• Magneto-optical trap of a Group III atom
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• Anisotropic collisions of dipolar Bose-Einstein condensates in the universal regime
• Relativistic aspects of orbital and magnetic anisotropies in the chemical bonding and structure of lanthanide molecules
• Production and stabilization of a spin mixture of ultracold dipolar Bose gases
• Observing dipolar confinement-induced resonances in waveguides
• Single-atom transistor as a precise magnetic field sensor
• Few-body physics of ultracold atoms and molecules with long-range interactions
• Magnetic control of ultra-cold ${}^6$Li and ${}^{174}$Yb(${}^3{P}_2$) atom mixtures with Feshbach resonances
• Prospects of forming high-spin polar molecules from ultracold atoms
• Chaotic scattering in the presence of a dense set of overlapping Feshbach resonances
• Characterizing the temperature dependence of Fano-Feshbach resonances of Ultracold Polarized Thulium
• Quantum chaos in Feshbach resonances of the ErYb system
• Fractal Universality in Near-Threshold Magnetic Lanthanide Dimers
• Universality of Efimov states in highly mass-imbalanced cold-atom mixtures with van der Waals and dipole interactions
• Two dipolar atoms in a harmonic trap
• Making two dysprosium atoms rotate - Einstein-de Haas effect revisited
• Near-threshold bound states of the dipole-dipole interaction
• Impact of overlapping resonances on magnetoassociation of cold molecules in tight traps
• Transport of magnetically sensitive atoms in a magnetic environment
• Low-field Feshbach resonances and three-body losses in a fermionic quantum gas of ${}^{161}$Dy
• Factor of 1000 suppression of the depolarization rate in ultracold thulium collisions