India Enters a New Quantum Era with Breakthrough in Quantum Communication

India has achieved a major milestone in quantum communication, demonstrating quantum secure communication via free-space optical links at IIT-Delhi. This advances quantum cyber security and lays the groundwork for future applications like Quantum Key Distribution. The achievement is part of India's broader goals for quantum technology development.

India has reached a significant milestone in the quantum communication field, marking a vital step forward in quantum cybersecurity. The Defence Ministry announced that an experimental success in free-space quantum secure communication using quantum entanglement has been achieved over a distance of more than one kilometer on the IIT-Delhi campus.

Defence Minister Rajnath Singh hailed this as a 'game-changer' for future warfare, crediting the Defence Research and Development Organisation (DRDO) and IIT-Delhi for ushering India into a 'new quantum era.' Officials noted that this development paves the way for real-time quantum cybersecurity applications, such as long-distance Quantum Key Distribution (QKD), quantum networks, and a future quantum internet.

The experiment delivered a secure key rate of nearly 240 bits per second with a quantum bit error rate under 7 percent. Recognized as a significant advancement, it reflects India's broader ambitions to enhance quantum technologies. The initiative, supported by the Directorate of Futuristic Technology Management, DFTR, is among ongoing DRDO supported projects through industry-academia collaborations.