Sub-Recoil Transverse Momentum Width in a Cold Ytterbium Atomic Beam
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866910941245865984 |
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| author | Hosoya, Toshiyuki Sato, Tomoya Inoue, Ryotaro Kozuma, Mikio |
| author_facet | Hosoya, Toshiyuki Sato, Tomoya Inoue, Ryotaro Kozuma, Mikio |
| contents | We demonstrate the generation of a slow ytterbium atomic beam with a transverse momentum width of $0.44(6)$ times the photon recoil associated with Bragg diffraction, and a flux of $6.7(9) \times 10^6$ atoms/s. This is achieved by applying momentum filtering through a long-lived metastable state to atoms prepared in a slow beam via two-dimensional transverse laser cooling. The resulting narrow momentum distribution enables efficient quasi-Bragg diffraction, which we exploit to realize a Bragg interferometer. These results mark a significant step toward continuous, high-precision, and magnetically insensitive angular rate measurements using cold alkaline-earth(-like) atomic beams. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_08250 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Sub-Recoil Transverse Momentum Width in a Cold Ytterbium Atomic Beam Hosoya, Toshiyuki Sato, Tomoya Inoue, Ryotaro Kozuma, Mikio Atomic Physics We demonstrate the generation of a slow ytterbium atomic beam with a transverse momentum width of $0.44(6)$ times the photon recoil associated with Bragg diffraction, and a flux of $6.7(9) \times 10^6$ atoms/s. This is achieved by applying momentum filtering through a long-lived metastable state to atoms prepared in a slow beam via two-dimensional transverse laser cooling. The resulting narrow momentum distribution enables efficient quasi-Bragg diffraction, which we exploit to realize a Bragg interferometer. These results mark a significant step toward continuous, high-precision, and magnetically insensitive angular rate measurements using cold alkaline-earth(-like) atomic beams. |
| title | Sub-Recoil Transverse Momentum Width in a Cold Ytterbium Atomic Beam |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2505.08250 |