Photonic Quantum Chip QGATE Tolerates Up to 26% Photon Loss

UK startup Aegiq and the University of Sheffield published the QGATE photonic quantum computing architecture in Quantum Science and Technology. It reports photon-loss thresholds of 10.36 ± 0.02% and 25.98 ± 0.28%, with algorithm compile time scaling linearly instead of exponentially.

• Photon-loss thresholds: 10.36 ± 0.02% and 25.98 ± 0.28%
• Upper threshold substantially exceeds prior photonic architectures
• Algorithm compile time scales linearly, not exponentially
• Architecture fuses circuit model with measurement-based computing