An ytterbium quantum gas microscope with narrow-line laser cooling
By R. Yamamoto, J. Kobayashi, Takuma Kuno, Kohei Kato, Y. Takahashi. 2015
149 citations recorded by the source corpus.
We demonstrate site-resolved imaging of individual bosonic 174 Yb ?> atoms in a Hubbard-regime two-dimensional optical lattice with a short lattice constant of 266 nm. To suppress the heating by probe light with the 1S0–1P1 transition of the wavelength λ = 399 nm for high-resolution imaging and preserve atoms at the same lattice sites during the fluorescence imaging, we simultaneously cool atoms by additionally applying narrow-line optical molasses with the 1S0–3P1 transition of the wavelength λ = 556 nm. We achieve a low temperature of T = 7.4 ( 13 ) &mgr; K ?> , corresponding to a mean oscillation quantum number along the horizontal axes of 0.22(4) during the imaging process. We detect, on average, 200 fluorescence photons from a single atom within a 400 ms exposure time, and estimate a detection fidelity of 87(2)%. The realization of a quantum gas microscope with enough fidelity for Yb atoms in a Hubbard-regime optical lattice opens up the possibilities for studying various kinds of quantum many-body systems such as Bose and Fermi gases, and their mixtures, and also long-range-interacting systems such as Rydberg states.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/fb1f80e60698bf2bc9623b4c3d7c77bbfc3efe2e
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In Atomic and Molecular Physics, and Optics
Citations in the corpus
- Creating and probing the Sachdev-Ye-Kitaev model with ultracold gases: Towards experimental studies of quantum gravity (2016, background): “Nevertheless, given the fact that opticallattice microscope techniques have been rapidly developed in recent experiments for several different atomic species, including 87Rb [47, 48], 174Yb [61, 62], 6Li [63], and 40K [64–66], it is expected that future experiments will be able to overcome this chal”
- Microscopic Control and Detection of Ultracold Strontium in Optical-Tweezer Arrays (2018, methodology): “[38] Ryuta Yamamoto, Jun Kobayashi, Takuma Kuno, Ko-”
- Ytterbium Nuclear-Spin Qubits in an Optical Tweezer Array (2021, background): “Unlike the (174)Yb isotope [26, 60], the (1)S0 ↔ (3)P1 transition of (171)Yb is not near-magic at 532 nm, and a magic angle does not exist at this trapping wavelength for any orientation of the quantization axis [24].”