ETH Zurich Demonstrates 17,000-Qubit Array With 99.91% Fidelity

Researchers at ETH Zurich have demonstrated a 17,000-qubit array operating at 99.91% fidelity, a milestone that brings practical quantum computing significantly closer to reality. The achievement shatters previous qubit count records while maintaining the error rates needed for useful computation. The breakthrough could accelerate timelines for quantum applications in drug discovery, cryptography, and materials science.