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- W4308755731 abstract "Three-body recombination is a chemical reaction where the collision of three atoms leads to the formation of a diatomic molecule. In the ultracold regime it is expected that the production rate of a molecule generally decreases with its binding energy $E_b$, however, its precise dependence and the physics governing it have been left unclear so far. Here, we present a comprehensive experimental and theoretical study of the energy dependency for three-body recombination of ultracold Rb. For this, we determine production rates for molecules in a state-to-state resolved manner, with the binding energies $E_b$ ranging from 0.02 to 77 GHz$times h$. We find that the formation rate approximately scales as $E_b^{-alpha}$, where $alpha$ is in the vicinity of 1. The formation rate typically varies only within a factor of two for different rotational angular momenta of the molecular product, apart from a possible centrifugal barrier suppression for low binding energies. In addition to numerical three-body calculations we present a perturbative model which reveals the physical origin of the energy scaling of the formation rate. Furthermore, we show that the scaling law potentially holds universally for a broad range of interaction potentials." @default.
- W4308755731 created "2022-11-15" @default.
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- W4308755731 date "2022-11-07" @default.
- W4308755731 modified "2023-09-27" @default.
- W4308755731 title "Energy-scaling of the product state distribution for three-body recombination of ultracold atoms" @default.
- W4308755731 doi "https://doi.org/10.48550/arxiv.2211.03834" @default.
- W4308755731 hasPublicationYear "2022" @default.
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