Long-Lived Ultracold Molecules with Electric and Magnetic Dipole Moments

Autor: Rvachov, Timur M., Son, Hyungmok, Sommer, Ariel T., Ebadi, Sepehr, Park, Juliana J., Zwierlein, Martin W., Ketterle, Wolfgang, Jamison, Alan O.
Rok vydání: 2017
Předmět:
Zdroj: Phys. Rev. Lett. 119, 143001 (2017)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.119.143001
Popis: We create fermionic dipolar $^{23}$Na$^6$Li molecules in their triplet ground state from an ultracold mixture of $^{23}$Na and $^6$Li. Using magneto-association across a narrow Feshbach resonance followed by a two-photon STIRAP transfer to the triplet ground state, we produce $3\,{\times}\,10^4$ ground state molecules in a spin-polarized state. We observe a lifetime of $4.6\,\text{s}$ in an isolated molecular sample, approaching the $p$-wave universal rate limit. Electron spin resonance spectroscopy of the triplet state was used to determine the hyperfine structure of this previously unobserved molecular state.
Comment: 5 pages, 5 figures
Databáze: arXiv