Ultra-compact dispersive readout sensor simplifies wiring/ architecture required to scale up silicon spin qubit quantum processors

https://www.eurekalert.org/news-releases/1135068

"replaces bulky external resonant circuits with 10s-of-nm-scale on-chip gate-based sensor, small enough to measure qubit states... achieves readout fidelity of 99.1% in less than one microsecond, demonstrating that speed and accuracy do not need to be sacrificed for minimization... scalable fault-tolerant quantum microchips comprised of millions-of-qubits commercial arrays fabricated using existing semiconductor foundries"