Accurate Determination of the Dynamical Polarizability of Dysprosium

Abstract

We report a measurement of the dynamical polarizability of dysprosium atoms in their electronic ground state at the optical wavelength of 1064 nm, which is of particular interest for laser trapping experiments. Our method is based on collective oscillations in an optical dipole trap, and reaches unprecedented accuracy and precision by comparison with an alkali atom (potassium) as a reference species. We obtain values of 184.4(2.4) a.u. and 1.7(6) a.u. for the scalar and tensor polarizability, respectively. Our experiments have reached a level that permits meaningful tests of current theo- retical descriptions and provides valuable information for future experiments utilizing the intriguing properties of heavy lanthanide atoms.

arXiv comment4 pages and 4 figures. The Supplemental Materials are located in the Ancillary files

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Cited by in corpus (36)

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• Production of a degenerate Fermi-Fermi mixture of dysprosium and potassium atoms
• Quantum mixtures of ultracold gases of neutral atoms
• Resonantly Interacting Fermi-Fermi Mixture of ${}^{161}$Dy and ${}^{40}$K
• Study of the inter-species interactions in an ultracold dipolar mixture
• Dysprosium dipolar Bose-Einstein condensate with broad Feshbach resonances
• Microscopic 3D printed optical tweezers for atomic quantum technology
• 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
• Spectroscopy of the 1001 nm transition in atomic dysprosium
• Observation of a narrow inner-shell orbital transition in atomic erbium at 1299 nm
• Pairing patterns in one-dimensional spin- and mass-imbalanced Fermi gases
• Ultracold rare-earth magnetic atoms with an electric dipole moment
• Magnetically tunable Feshbach resonances in ultracold gases of europium atoms and mixtures of europium and alkali-metal atoms
• Observation of low-field Feshbach resonances between ${}^{161}$Dy and ${}^{40}$K
• Production and stabilization of a spin mixture of ultracold dipolar Bose gases
• Optically trapped Feshbach molecules of fermionic 161Dy and 40K
• Measurement of a ${}^7$Li tune-out wavelength by phase-patterned atom interferometry
• Ramsey imaging of optical traps
• Measurement of the dynamic polarizability of Dy atoms near the 626-nm intercombination line
• AC polarizability and photoionization cross-section measurements in an optical lattice
• Observation of the density dependence of the closed-channel fraction of a ${}^6$Li superfluid
• Comprehensive characterization of an apparatus for cold electromagnetic dysprosium dipoles
• New opportunites for interactions and control with ultracold lanthanides
• Purely long-range polar molecules composed of identical lanthanide atoms
• Dissipative cooling of spin chains by a bath of dipolar particles
• Blue repulsive potential for dysprosium Bose-Einstein condensates
• Multi-state interferometric measurement of nonlinear AC Stark shift
• Kovtun-Son-Starinets Conjecture and Effects of Mass Imbalance in the Normal State of an Ultracold Fermi Gas in the BCS-BEC Crossover Region
• Dipole-Mode Spectrum and Hydrodynamic Crossover in a Resonantly Interacting Two-Species Fermion Mixture
• Optically trapped Feshbach molecules of fermionic ${}^{161}$Dy and ${}^{40}$K: Role of light-induced and collisional losses
• Determination of the ground state polarizability of ${}^{162}$Dy near 530 nm
• Van der Waals coefficients for interactions of dysprosium and erbium atoms with alkali-metal and alkaline-earth-metal atoms