A dual-region ytterbium tweezer apparatus with an in-vacuum nanofiber cavity
Abstract
We present a dual-region experimental apparatus for trapping single atoms of the fermionic isotope ytterbium-171 (171Yb) with optical tweezers in a science chamber containing an in-vacuum nanofiber cavity. A source region is located approximately 240 mm from the science chamber, preserving optical access around the chamber for high-numerical-aperture tweezer optics. A pulsed transport sequence based on longitudinal moving molasses launches atomic pulses toward the science chamber, where they are decelerated and recaptured in a magneto-optical trap. We subsequently load single atoms into a 2×2 tweezer array located approximately 50 μm from the nanofiber and measure a 1/e lifetime of 9.5(7) s. These results demonstrate that the dual-region architecture provides sufficient 171Yb atoms for single-atom tweezer operation near an in-vacuum nanofiber cavity.
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BibTeX
@misc{hashimoto2026dualregion,
title = {{A dual-region ytterbium tweezer apparatus with an in-vacuum nanofiber cavity}},
author = {Shunichiro Hashimoto and Hideki Ozawa and Yusuke Hisai and Takao Aoki and Ryotaro Inoue},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.25245},
eprint = {2609.25245},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.25245},
}
RIS
TY - UNPB
TI - A dual-region ytterbium tweezer apparatus with an in-vacuum nanofiber cavity
AU - Shunichiro Hashimoto
AU - Hideki Ozawa
AU - Yusuke Hisai
AU - Takao Aoki
AU - Ryotaro Inoue
PY - 2026
DA - 2026/09/21
PB - arXiv
DO - 10.48550/arxiv.2609.25245
UR - https://arxiv.org/abs/2609.25245
AB - We present a dual-region experimental apparatus for trapping single atoms of the fermionic isotope ytterbium-171 (^171Yb) with optical tweezers in a science chamber containing an in-vacuum nanofiber cavity. A source region is located approximately 240 mm from the science chamber, preserving optical access around the chamber for high-numerical-aperture tweezer optics. A pulsed transport sequence based on longitudinal moving molasses launches atomic pulses toward the science chamber, where they are decelerated and recaptured in a magneto-optical trap. We subsequently load single atoms into a 2×2 tweezer array located approximately 50 μm from the nanofiber and measure a 1/e lifetime of 9.5(7) s. These results demonstrate that the dual-region architecture provides sufficient ^171Yb atoms for single-atom tweezer operation near an in-vacuum nanofiber cavity.
ER -