<i>In situ</i> equalization of single-atom loading in large-scale optical tweezer arrays

We report on the realization of large assembled arrays more than 300 single $^{87}$Rb atoms trapped in optical tweezers a cryogenic environment at $\sim4$~K. For with $N_{\rm a}=324$ atoms, assembly process results defect-free $\sim37\%$ realizations. To achieve this high assembling efficiency, we equalize loading probability traps within array using closed-loop optimization power each tweezers, based analysis fluorescence time-traces loaded traps.