Quantum Experiments in Satellite Technology - Quantum Key Distribution and Long-Haul Communications

Watch a technical lecture exploring quantum key distribution (QKD) protocols and their implementation through satellite technology, with a focus on the QuEST-ISRO project's uplink-based approach. Learn about the challenges of long-distance quantum communication and how satellite-based solutions overcome the limitations of optical fiber transmission. Discover the innovative work being conducted at the Raman Research Institute, where researchers are developing ground-based entangled photon sources for secure communication with low Earth orbit satellites. Gain insights into the advantages of uplink-based implementation, which provides experimentalists greater access and control over the source module compared to downlink systems like China's Micius satellite. Explore the project's achievements and milestones in advancing quantum cryptography for secure key string sharing between distant parties.