New ordered-angle coding scheme enables exact multiuser unanimity testing via Bell states. Power-of-two user counts achieve perfect discrimination in log₂n trials—replacing O(n² log(1/ε)) requirements—with explicit calibration robustness bounds.

#QuantumCommunication #QuantumCryptography #Research

Daylight-compatible quantum key distribution via satellite using hexagonal boron nitride emitters tuned to Fraunhofer lines (854 nm), enabling practical, continuous quantum networks with fiber-optic ground station integration for the quantum internet.

#QuantumCommunication #QKD #Photonics