New Delhi, June 17 -- India has entered into a new quantum era by successfully demonstrating an experimental advancement through DRDO-Industry-Academia Centre of Excellence (DIA-CoE), IIT Delhi, according to the official statement from the Ministry of Defence.

The free-space quantum secure communication using quantum entanglement over a distance of more than one km was achieved via a free-space optical link established on the IIT Delhi campus.

The experiment attained a secure key rate of nearly 240 bits per second with a quantum bit error rate of less than 7 per cent.

As per the release, this entanglement-assisted quantum secure communication paves the way for real-time applications in quantum cybersecurity, including long-distance Qua...