Speaker
Description
In atom–cavity platforms, fast readout of individual atom states remains a key bottleneck for scalability the system. We implement a cavity array microscope — a parallel atom–cavity interface for simultaneous, cavity-enhanced readout and atom–photon interfacing in a rubidium–ytterbium Rydberg array — to improve readout times and networking rates. Rather than pursuing a short, high-finesse Fabry–Pérot, the cavity uses an intracavity telescope to focus the collimated cavity mode to a waist of w₀ ≈ 1.5 µm at the atom plane, while the mirrors remain macroscopically separated. This lens-based geometry places most of the optics out of vacuum, relaxes mirror tolerances, and reaches a useful single-atom cooperativity of C > 1 at only modest finesse. The cavity enables fast, non-destructive state readout and mid-circuit measurement via state-selective coupling, and provides an atom–photon interface for networking via fiber arrays.