Scalar, tensor and vector polarizability of Tm atoms in 532 nm dipole trap

Abstract

Dipolar atoms have unique properties, making them interesting for laser cooling and quantum simulations. But, due to relatively large orbital momentum in the ground state these atoms may have large dynamic tensor and vector polarizabilities in the ground state. This enables the formation of spin-dependent optical traps. In this paper real part of tensor and vector dynamic polarizability was experimentally measured and compared to theoretical simulation. For an optical dipole trap operating around 532.07 nm tensor, polarizability was found to be $-145\pm 53\mathrm{a}.u.$ and vector was $680\pm 240\mathrm{a}.u.$. The measurements were compared with simulations, which were done based on the known set of levels from a thulium atom. The simulations are in good agreement with experimental results. In addition, losses of atoms from the dipole trap were measured for different trap configurations and compared to the calculated imaginary part of vector and tensor polarizabilities.

References in corpus (14)

• Cold bosonic atoms in optical lattices
• Quantum Simulation
• A Strongly Dipolar Bose-Einstein Condensate of Dysprosium
• Observation of dipole-dipole interaction in a degenerate quantum gas
• Comparing contact and dipolar interaction in a Bose-Einstein condensate
• Lattice Induced Frequency Shifts in Sr Optical Lattice Clocks at the $10^{-17}$ Level
• Anisotropy induced Feshbach resonances in a quantum dipolar gas of magnetic atoms
• Realization of a Strongly Interacting Fermi Gas of Dipolar Atoms
• Anisotropic Superfluid Behavior of a Dipolar Bose-Einstein Condensate
• Controlling interactions between highly-magnetic atoms with Feshbach resonances
• Inner-shell magnetic dipole transition in Tm atom as a candidate for optical lattice clocks
• Anisotropic polarizability of erbium atoms
• Anisotropic optical trapping of ultracold erbium atoms
• Polarized cold cloud of thulium atom

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• Microwave coherent spectroscopy of ultracold thulium atoms
• Losses of thulium atoms from optical dipole traps operating at 532 and 1064 nm
• Bose-Einstein condensate as a diagnostic tool for an optical lattice formed by 1064 nm laser light
• Inspiration from machine learning on example of optimization of the Bose-Einstein condensate of thulium atoms in a 1064-nm trap
• Forces on alkali Rydberg atoms due to non-linearly polarized light
• Transport of magnetically sensitive atoms in a magnetic environment
• Experimental study of tune-out wavelengths for spin-dependent optical lattice in ${}^{87}$Rb Bose-Einstein condensation
• Random matrix theory analysis of a temperature-related transformation in statistics of Fano-Feshbach resonances in Thulium atoms
• Tune-out wavelength for the thulium atom near 576 nm
• Portable Single-Beam Atomic Total-Field Magnetometer for Stand-off Magnetic Sensing
• Determination of the ground state polarizability of ${}^{162}$Dy near 530 nm