Three-body recombination in microwave-shielded polar molecules

Microwave shielding has shown great promise in creating ensembles of ultracold dipolar molecules. The presence of a barrier on the short-range shields the molecules, effectively suppressing the two-body losses. Although studies of the loss rate agree well with the expected trend from theory for the two-body losses, there are parameter regimes that show significant deviation, hinting towards three-body losses. We theoretically describe interacting microwave-shielded polar molecules to study these losses. Our preliminary studies show the presence of field-linked bound states in the channel hosting the shielded molecules, coinciding with an enhancement in the loss rate. Using our description, we attempt to quantify three-body recombination rates in microwave-shielded NaCs molecules using both Classical and Quantum approaches.