IEEE study investigates the effects of pointing error on quantum key distribution systems
Peer-Reviewed Publication
Updates every hour. Last Updated: 22-Jan-2026 06:11 ET (22-Jan-2026 11:11 GMT/UTC)
Quantum key distribution (QKD) uses quantum mechanics to ensure secure communication between two parties. Despite being one of the most performance degrading factors, pointing error has not been comprehensively investigated in previous studies. Now, researchers present a new framework for understanding the effects of pointing error on key QKD performance metrics, offering valuable insights for practical deployment.
Micro(nano)plastics (MNPs) pose a global concern as an emerging environmental pollutant. However, their transport properties currently lack complete theoretical interpretation. In a recent review, researchers from China now provide a comprehensive summary of the present pollution status of MNPs in hyporheic zones and groundwater systems, explaining their transport process and proposing future research directions on MNPs.
A new study shows that generative AI is already being used to “bring back” the dead, as entertainment icons, as political witnesses, and as everyday companions for grieving families. Tracing cases of AI “resurrections,” the study claims this practice isn’t just emotionally powerful; it’s ethically explosive because it turns a person’s voice, face, and life history into reusable raw material. AI resurrections are important because they can happen with little or no consent, clear ownership rules, or accountability, creating a new kind of exploitation the authors call “spectral labor,” where the dead become an involuntary source of data and profit, while the living are left to navigate blurred lines between memory and manipulation, comfort and coercion, tribute and abuse.
Canada is failing in a decades-old pledge to monitor the health of Pacific salmon, according to new research from Simon Fraser University.
At a time when government policy is geared towards accelerating industrial development across sensitive B.C. watersheds, an SFU study published today in the Canadian Journal of Fisheries and Aquatic Sciences reports that monitoring of salmon spawning populations has dropped 32 per cent since Canada adopted its Wild Salmon Policy 20 years ago.