Single-site-resolved imaging of ultracold atoms in a triangular optical lattice
We demonstrate single-site-resolved fluorescence imaging of ultracold ^87 Rb atoms in a triangular optical lattice by employing Raman sideband cooling. Combining a Raman transition at the D1 line and a photon scattering through an optical pumping of the D2 line, we obtain images with low background...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/abcdc8 |
| _version_ | 1797750307430596608 |
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| author | Ryuta Yamamoto Hideki Ozawa David C. Nak Ippei Nakamura Takeshi Fukuhara |
| author_facet | Ryuta Yamamoto Hideki Ozawa David C. Nak Ippei Nakamura Takeshi Fukuhara |
| author_sort | Ryuta Yamamoto |
| collection | DOAJ |
| description | We demonstrate single-site-resolved fluorescence imaging of ultracold ^87 Rb atoms in a triangular optical lattice by employing Raman sideband cooling. Combining a Raman transition at the D1 line and a photon scattering through an optical pumping of the D2 line, we obtain images with low background noise. The Bayesian optimisation of 11 experimental parameters for fluorescence imaging with Raman sideband cooling enables us to achieve single-atom detection with a high fidelity of (96.3 ± 1.3)%. Single-atom and single-site resolved detection in a triangular optical lattice paves the way for the direct observation of spin correlations or entanglement in geometrically frustrated systems. |
| first_indexed | 2024-03-12T16:30:48Z |
| format | Article |
| id | doaj.art-b5e2905c887d440ba73b5ab4709828fd |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:30:48Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-b5e2905c887d440ba73b5ab4709828fd2023-08-08T15:29:57ZengIOP PublishingNew Journal of Physics1367-26302020-01-01221212302810.1088/1367-2630/abcdc8Single-site-resolved imaging of ultracold atoms in a triangular optical latticeRyuta Yamamoto0https://orcid.org/0000-0003-0913-9853Hideki Ozawa1https://orcid.org/0000-0002-8608-6479David C. Nak2https://orcid.org/0000-0002-4371-456XIppei Nakamura3https://orcid.org/0000-0001-7104-5562Takeshi Fukuhara4https://orcid.org/0000-0002-6702-9882RIKEN Center for Emergent Matter Science (CEMS) , Wako 351-0198, JapanRIKEN Center for Emergent Matter Science (CEMS) , Wako 351-0198, JapanRIKEN Center for Emergent Matter Science (CEMS) , Wako 351-0198, Japan; Institut für Laserphysik, Universität Hamburg , 22761 Hamburg, GermanyRIKEN Center for Emergent Matter Science (CEMS) , Wako 351-0198, JapanRIKEN Center for Emergent Matter Science (CEMS) , Wako 351-0198, JapanWe demonstrate single-site-resolved fluorescence imaging of ultracold ^87 Rb atoms in a triangular optical lattice by employing Raman sideband cooling. Combining a Raman transition at the D1 line and a photon scattering through an optical pumping of the D2 line, we obtain images with low background noise. The Bayesian optimisation of 11 experimental parameters for fluorescence imaging with Raman sideband cooling enables us to achieve single-atom detection with a high fidelity of (96.3 ± 1.3)%. Single-atom and single-site resolved detection in a triangular optical lattice paves the way for the direct observation of spin correlations or entanglement in geometrically frustrated systems.https://doi.org/10.1088/1367-2630/abcdc8cold atomsoptical latticelaser coolingquantum gas microscopefrustrated magnetismmachine learning |
| spellingShingle | Ryuta Yamamoto Hideki Ozawa David C. Nak Ippei Nakamura Takeshi Fukuhara Single-site-resolved imaging of ultracold atoms in a triangular optical lattice New Journal of Physics cold atoms optical lattice laser cooling quantum gas microscope frustrated magnetism machine learning |
| title | Single-site-resolved imaging of ultracold atoms in a triangular optical lattice |
| title_full | Single-site-resolved imaging of ultracold atoms in a triangular optical lattice |
| title_fullStr | Single-site-resolved imaging of ultracold atoms in a triangular optical lattice |
| title_full_unstemmed | Single-site-resolved imaging of ultracold atoms in a triangular optical lattice |
| title_short | Single-site-resolved imaging of ultracold atoms in a triangular optical lattice |
| title_sort | single site resolved imaging of ultracold atoms in a triangular optical lattice |
| topic | cold atoms optical lattice laser cooling quantum gas microscope frustrated magnetism machine learning |
| url | https://doi.org/10.1088/1367-2630/abcdc8 |
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