China Photonic Chip Hits 98.7% Grover Accuracy: Four Photons Carry 16 Qubits on Silicon

Chinese researchers at Hefei Guizhen Chip Technology and USTC demonstrated a photonic silicon chip that created a 16-qubit entangled state using only four photons, achieving a 98.7% accuracy on Grover's algorithm, significantly surpassing previous results from Germany's University of Stuttgart. The chip operates at room temperature, uses standard silicon fabrication, and represents a major advance in on-chip measurement-based quantum computing.

This Wire brief sits within Fusion42's coverage of Quantum Computing, and 2 sources have reported it between 10 Aug 2026 and 11 Aug 2026.