Scientists have now modelled a working quantum uplink from Earth. The study shows that photons can travel upward to satellites successfully. It challenges old assumptions about impossible quantum communication directions. This breakthrough could transform the future of secure global data networks.
What did the study reveal?
Researchers demonstrated a feasible quantum uplink using entangled photons. Two ground stations would fire photons toward a moving satellite. They meet at high speed and interfere in perfect synchrony. This interference would confirm quantum entanglement across long spatial distances.
Who achieved this new feat?
The research came from the University of Technology Sydney, Australia. It was published in the journal Physical Review Research recently. Their model includes turbulence, sunlight and satellite motion effects accurately. These results show it could work at night under real conditions.
Why is this discovery significant?
Quantum networks rely on entanglement for secure, tamper-proof communication links. Until now, only satellite-to-Earth quantum downlinks were considered technically viable. Uplinks were thought impossible due to atmospheric noise and photon loss. This model proves ground-to-space communication could become efficient and reliable.
What challenges remain ahead?
Atmospheric interference and precise satellite alignment remain major technical hurdles. Daytime sunlight and stray photons can distort fragile quantum signals. The system also requires exact timing between distant ground stations. Further experiments will test the model using drones
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