Realization of strong coupling between deterministic single-atom arrays and a high-finesse miniature optical cavity
arXiv:2207.04371 · doi:10.1103/PhysRevLett.130.173601
Abstract
We experimentally demonstrate strong coupling between a one-dimensional (1D) single-atom array and a high-finesse miniature cavity. The atom array is obtained by loading single atoms into a 1D optical tweezer array with dimensions of 111. Therefore, a deterministic number of atoms is obtained, and the atom number is determined by imaging the atom array on a CCD camera in real time. By precisely controlling the position and spacing of the atom array in the high finesse Fabry--Perot cavity, all the atoms in the array are strongly coupled to the cavity simultaneously. The vacuum Rabi splitting spectra are discriminated for deterministic atom numbers from 1 to 8, and the dependence of the collective enhancement of the coupling strength on atom number is validated at the single-atom level.
Main text: 6 pages, 4 figures; Supplementary material: 6 pages, 4 figures, fixed some small errors; accepted by PRL
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