Explainer: Why India’s 1,000-km quantum network is groundbreaking
India’s recent demonstration of a 1,000-km quantum communication network using indigenous technology marks a step forward under the National Quantum Mission. Rishi Raj explains why this is a big move towards ultra-secure communications
l What has India demonstrated?
INDIA HAS SHOWN that quantum key distribution (QKD) can be deployed over a network spanning 1,000 km by stitching together multiple shorter links. Each segment uses quantum principles to exchange encryption keys securely, while intermediate nodes connect these segments. The achievement lies in integrating these links into a functioning network using domestic technology within a short timeframe.
