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Apparatus for producing a \(^{168}\hbox {Er}\) Bose–Einstein condensate

  • Original Paper - Atoms, Molecules and Optics
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Abstract

We report on the experimental realization of Bose–Einstein condensate (BEC) of \(^{168}\hbox {Er}\) atoms with tunable s-wave and dipolar interactions in a newly developed apparatus. Here, we describe an efficient method for trapping slow Er atoms in a narrow linewidth magneto-optical trap. After evaporative cooling in a crossed optical dipole trap, we achieve a spin-polarized condensate of \(>2.5\times 10^4\) atoms at the temperature of \(T\simeq\) 50 nK. The efficient preparation of ultracold erbium bosons offers new possibilities for studying many-body physics with dipolar interactions.

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Acknowledgements

We acknowledge support from the RGC through 16305317, 16304918, 16308118, 16306119, 16302420, 16302821, 16306321 C6005-17 G, C6009-20 G, RMGS20SC05 and RFS2122–6S04. This works is also supported by the Guangdong-Hong Kong Joint Laboratory.

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Author notes

  1. Bojeong Seo and Ziting Chen have contributed equally to this work.

Authors and Affiliations

  1. Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China

    Bojeong Seo, Ziting Chen, Mingchen Huang, Mithilesh K. Parit, Yifei He, Peng Chen & Gyu-Boong Jo

  2. IAS Center for Quantum Technologies, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, China

    Gyu-Boong Jo

  3. Microelectronics Thrust, The Hong Kong University of Science and Technology (Guangzhou), Guangzhou, China

    Gyu-Boong Jo

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  1. Bojeong Seo
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  2. Ziting Chen
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  3. Mingchen Huang
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  4. Mithilesh K. Parit
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Correspondence to Peng Chen or Gyu-Boong Jo.

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Seo, B., Chen, Z., Huang, M. et al. Apparatus for producing a \(^{168}\hbox {Er}\) Bose–Einstein condensate. J. Korean Phys. Soc. 82, 901–906 (2023). https://doi.org/10.1007/s40042-023-00767-0

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