What is quantum tech demo by DRDO and IIT Delhi all about?

GS Paper 3: Topics Covered: Developments in Science and Technology.   Context: Recently, a joint team of experts from the Defence Research and Development Organisation (DRDO) and Indian Institute of Technology (IIT) Delhi demonstrated the Quantum Key Distribution (QKD) link for a distance of over 100 kilometres.   Why is this significant? With this success, …

ISRO demonstrates hack-proof quantum communication:

GS Paper 3: Topics Covered: Developments in Science and Technology.   Context: In a major step forward towards satellite-based quantum communication, scientists from Ahmedabad-based Space Applications Centre and Physical Research Laboratory successfully demonstrated quantum entanglement. Using real-time Quantum Key Distribution (QKD), they conducted hack-proof communication between two places separated by 300 meters.   Significance: Quantum …