CURRENT AFFAIRS

Detailed explanation-1: -Department of Space demonstrates entanglement based quantum communication over 300m free space along with real time cryptographic applications.

Detailed explanation-2: -Q. Which Indian organisation demonstrated ‘Free space quantum communication’ for the first time? Notes: For the first time, the Indian Space Research Organisation (ISRO) has recently demonstrated free-space quantum communication over a distance of 300 m.

Detailed explanation-3: -For the first time, ISRO demonstrated free-space quantum communication over a distance of 300 metres.

Detailed explanation-4: -The free-space QKD was demonstrated at Space Applications Centre (SAC), Ahmedabad, between two line-of-sight buildings within the campus. The experiment was performed at night, in order to ensure that there is no interference of the direct sunlight.

Detailed explanation-5: -A joint team of scientists from Defence Research and Development Organisation (DRDO) and Indian Institute of Technology (IIT) Delhi, for the first time in the country successfully demonstrated Quantum Key Distribution link between Prayagraj and Vindhyachal in Uttar Pradesh, a distance of more than 100 kilometres.