India’s Centre for Development of Advanced Computing in Pune has successfully demonstrated a mobile quantum communication system using drones. The trial advances infrastructure-independent quantum networks as part of the National Quantum Mission. Conducted outside controlled lab settings, the test proves quantum-secured links work in real-world mobility scenarios.
Technical Details of the Demonstration
Engineers deployed a B92 Quantum Key Distribution system on a drone platform with a 50-meter free-space optical link. GPS-based precision synchronized timing between the drone and ground station. Quantum data underwent post-processing via a drone-based RF connection, achieving a 5% quantum bit error rate and secure key rate of around 2 kilobits per second.
The project also introduced Drone Quantum Kavach, a post-quantum secure solution for unmanned aerial systems. It encrypts live video streams frame-by-frame from drone to ground station. This protects critical feeds in defense, disaster response, and remote operations where traditional networks fall short.
Quantum Key Distribution enables secure key sharing over quantum channels, resisting eavesdropping. The B92 protocol suits mobile applications by simplifying exchanges. Free-space optics handles direct line-of-sight transmission, while RF links manage secondary processing.
Collaboration and Leadership
C-DAC partnered with Sagar Defence Engineering for the Drone Quantum Kavach component. Anindita Banerjee, project manager for quantum technologies at C-DAC Pune, led the effort. She noted the dual achievements in mobility-based quantum communication and drone-secured links using post-quantum cryptography.
The demonstration reaches Technology Readiness Level 4 to 5, moving prototypes toward operational deployment. This bridges lab research to field-ready systems for ad-hoc quantum networks.
Alignment with National Quantum Mission
India’s National Quantum Mission funds such indigenous efforts to build resilient communication infrastructure. Mobile quantum systems suit challenging environments like borders, disaster zones, and rural areas without fixed cabling. Drones extend secure coverage dynamically, supporting self-reliance in deep tech.
The results highlight reliable performance beyond labs. C-DAC plans further scaling for longer distances and higher speeds. This positions India to lead in quantum-secured mobility amid global cyber threats and quantum computing advances.
Applications span defense surveillance, emergency response, and critical infrastructure. Post-quantum encryption prepares for future quantum attacks on classical systems. Operators gain tools for sovereign, tamper-proof data links.
