Fast Nondestructive Readout for High-Clock-Rate Atom Array Quantum Processor
This paper introduces a fast, nondestructive readout architecture utilizing real-time, site-resolved adaptive protection and continuous photon counting to reduce qubit measurement latency to 15 μs, enabling a 1.7 kHz clock rate and over 120 consecutive circuit rounds in a 100-qubit neutral-atom array, thereby overcoming the primary bottleneck to fault-tolerant quantum computation.