- Letter
Superresolution optical trapping of multiple cold atoms
Phys. Rev. A 112, L051307 – Published 26 November, 2025
DOI: https://doi.org/10.1103/nj9v-gvzb
Abstract
Arrays of optical tweezers form the backbone of neutral-atom analog and digital quantum processors. However, the intertrap distance remains generally much larger than the size of the tweezers to avoid interference-induced trap distortions, limiting the trap density. Here, we report single-atom trapping in four superresolved tweezers, meaning with a separation below the Sparrow diffraction limit. The optical pattern is generated using a superoscillatory phenomenon leading to subwavelength traps with full control of the trap relative phases. We investigate two sets of relative phases that impede or allow the hopping and the reshuffling of atoms. We envision that superoscillatory light structuring will bridge the gap between large-distance traps generated by tweezer arrays and short-distance traps formed with optical lattices.