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Article overview
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Efficient production of long-lived ultracold Sr$_2$ molecules | | Alessio Ciamei
; Alex Bayerle
; Chun-Chia Chen
; Benjamin Pasquiou
; Florian Schreck
; | | Date: |
3 May 2017 | | Abstract: | We associate Sr atom pairs on sites of a Mott insulator optically and
coherently into weakly-bound ground-state molecules, achieving an efficiency
above 80%. This efficiency is 2.5 times higher than in our previous work [PRL
109, 115302 (2012)] and obtained through two improvements. First, the lifetime
of the molecules is increased beyond one minute by using an optical lattice
wavelength that is further detuned from molecular transitions. Second, we
compensate undesired dynamic light shifts that occur during the stimulated
Raman adiabatic passage (STIRAP) used for molecule association. We also
characterize and model STIRAP, providing insights into its limitations. Our
work shows that significant molecule association efficiencies can be achieved
even for atomic species or mixtures that lack Feshbach resonances suitable for
magnetoassociation. | | Source: | arXiv, 1705.1422 | | Services: | Forum | Review | PDF | Favorites | |
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