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- W2810369312 abstract "Ultracold paramagnetic and polar diatomic molecules are among the promising systems for quantum simulation of lattice-spin models. Unfortunately, their experimental observation is still challenging. Based on our recent ab initio calculations, we analyze the feasibility of all-optical schemes for the formation of ultracold $^{87}mathrm{Rb}^{84}mathrm{Sr}$ bosonic molecules. A first possibility is photoassociation followed by spontaneous emission. The photoassociation rate coefficients toward electronic states converging to the $^{87}mathrm{Rb}(5sphantom{rule{0.16em}{0ex}}^{2}S_{1/2})+^{84}mathrm{Sr}(5s5pphantom{rule{0.16em}{0ex}}^{3}P_{0,1,2}$) asymptotes are particularly small for vibrational levels close to the asymptote. The creation of molecules would be more interesting by using deeply bound levels which preferentially relax to the ${v}^{ensuremath{'}ensuremath{'}}=0$ level of the ground state. On the other hand, the photoassociation rate coefficients toward electronic states correlated to the $mathrm{Rb}(5pphantom{rule{0.16em}{0ex}}^{2}P_{1/2,3/2})+mathrm{Sr}(5{s}^{2}phantom{rule{0.16em}{0ex}}^{1}S_{0}$) are significant for levels close to the asymptote. The spontaneous emission thus creates weakly bound molecules in a single vibrational level. A second option relies on stimulated Raman adiabatic passage implemented in a tight optical trap. It efficiently creates weakly bound ground-state molecules in a well-defined level, thus providing a promising alternative to magnetic Feshbach resonances for further population transfer toward the absolute ground state of the RbSr molecule." @default.
- W2810369312 created "2018-07-10" @default.
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- W2810369312 date "2018-11-09" @default.
- W2810369312 modified "2023-10-18" @default.
- W2810369312 title "Proposal for the formation of ultracold deeply bound RbSr dipolar molecules by all-optical methods" @default.
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- W2810369312 doi "https://doi.org/10.1103/physreva.98.053411" @default.
- W2810369312 hasPublicationYear "2018" @default.
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