Aegiq and the University of Sheffield propose the QGATE photonic quantum architecture, with a photon-loss threshold reaching up to 25.98%

UK startup Aegiq and the University of Sheffield proposed the photonic quantum computing architecture QGATE, with photon-loss thresholds of 10.36 ± 0.02% and 25.98 ± 0.28%; the latter significantly exceeds the loss thresholds of other previously published photonic architectures. The architecture changes how algorithm compilation time scales as circuit complexity increases, from exponential growth to linear growth. The paper was published after peer review in Quantum Science and Technology on October 8, 2026.