| Autor: |
Naohiro Okamoto, Takatoshi Aoki, Yoshio Torii |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Physical Review Research, Vol 6, Iss 4, p 043088 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2643-1564 |
| DOI: |
10.1103/PhysRevResearch.6.043088 |
| Popis: |
We explore the efficacy of two single-repumping schemes, 5s5p^{3}P_{2}−5p^{2}^{3}P_{2} (481nm) and 5s5p^{3}P_{2}−5s5d^{3}D_{2} (497nm), for a magneto-optical trap (MOT) of Sr atoms. We reveal that the enhancement in the MOT lifetime is limited to 26.9(2) for any single-repumping scheme. Our investigation indicates that the primary decay path from the 5s5p^{1}P_{1} state to the 5s5p^{3}P_{0} state proceeds via the 5s4d^{3}D_{1} state, rather than through the upper states accessed by the single-repumping lasers. We estimate that the branching ratio for the 5s5p^{1}P_{1}→5s4d^{3}D_{1}→5s5p^{3}P_{0} decay path is 1:3.9(1.5)×10^{6} and the decay rate for the transition from the 5s5p^{1}P_{1} state to the 5s4d^{3}D_{1} state is 83(32)s^{−1}. This outcome underscores the limitation on atom number in the MOT for long loading times (≳1s) when employing a single-repumping scheme. These findings will contribute to the construction of field-deployable optical lattice clocks. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
