Observation of Collisions between Two Ultracold Ground-State CaF Molecules
| Autor: | Cheuk, Lawrence W., Anderegg, Loïc, Bao, Yicheng, Burchesky, Sean, Yu, Scarlett, Ketterle, Wolfgang, Ni, Kang-Kuen, Doyle, John M. |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Phys. Rev. Lett. 125, 043401 (2020) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.125.043401 |
| Popis: | We measure inelastic collisions between ultracold CaF molecules by combining two optical tweezers, each containing a single molecule. We observe collisions between $^2\Sigma$ CaF molecules in the absolute ground state $|X,v=0, N=0,F=0\rangle$, and in excited hyperfine and rotational states. In the absolute ground state, we find a two-body loss rate of $7(4) \times 10^{-11} \text{cm}^{3}/\text{s}$, which is below, but close to the predicted universal loss rate. Comment: 5 pages, 4 figures |
| Databáze: | arXiv |
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