The programme was approved after a delay of two years — the government first announced it in the 2020 Budget, with a commitment of about Rs 8,000 crore then.
The programme will be implemented by the Department of Science and Technology in partnership with others. With this, India will join a league of six nations that have been developing R&D capabilities in quantum computing — the USA, China, Finland, Austria, France, and Canada.
Quantum computers use quantum bits, or qubits, and are faster than regular and supercomputers, which use conventional bits. For instance, according to reports, Google’s quantum processor, Sycamore, in 2019 completed a task in 200 seconds that Google claimed, in a Nature paper, would take a state-of-the-art supercomputer 10,000 years to finish.
Experts say in a country like India, where the government uses technology to solve problems at scale, quantum computing could be a big boost, as it allows for large-scale simulations.
The programme will look to develop intermediate scale quantum computers with 50-1000 physical qubits in eight years in various platforms like superconducting and photonic technology. Satellite-based secure quantum communications between ground stations over a range of 2,000 kilometres within India, long distance secure quantum communications with other countries, inter-city quantum key distribution over 2,000 km, as well as multi-node quantum network with quantum memories are also some of the deliverables of the mission.
As part of the mission, four thematic hubs (T-Hubs) will be set up at top academic and national R&D institutes — quantum computing, quantum communication, quantum sensing and metrology, and quantum materials and devices.
The move was welcomed by the tech industry. This could provide a fillip for Indian firms pursuing R&D in quantum computing, such as TCS, IBM, and Tech Mahindra, among others.
Indian institutes have already begun dabbling with R&D on quantum computing. Last year, IIT Madras became the first institute from India to join IBM’s Quantum Network. It will get cloud-based access to IBM’s most advanced quantum computing systems and expertise.
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