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Forming a single molecule by magnetoassociation in an optical tweezer
Physical Review Letters ( IF 9.227 ) Pub Date : 
Jessie T. Zhang; Yichao Yu; William B. Cairncross; Kenneth Wang; Lewis R. B. Picard; Jonathan D. Hood; Yen-Wei Lin; Jeremy M. Hutson; Kang-Kuen Ni

We demonstrate the formation of a single NaCs molecule in an optical tweezer by magnetoassociation through an s-wave Feshbach resonance at 864.11(5)~G. Starting from single atoms cooled to their motional ground states, we achieve conversion efficiencies of 47(1)%, and measure a molecular lifetime of 4.7(7)~ms. By construction, the single molecules are predominantly~(77(5)%) in the center-of-mass motional ground state of the tweezer. Furthermore, we produce a single p-wave molecule near 807 G by first preparing one of the atoms with one quantum of motional excitation. Our creation of a single weakly bound molecule in a designated internal state in the motional ground state of an optical tweezer is a crucial step towards coherent control of single molecules in optical tweezer arrays.
更新日期:2020-05-22

 

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