An image of the penicillin molecule may be difficult to analyse, let alone molecules with over 100 components. This is where quantum computing fits in. It has a unique ability to calculate structures at atomic and subatomic scales and does so with precision. That’s just one of its attributes. No surprise that the technology could find applications in communication satellites that can be beamed to receivers on Earth. This may be used for scientific studies. That’s not all. Quantum computing may be used in healthcare, communication and large-scale optimisation like traffic flow, goods delivery and task simulation. It could probably help to sift through large chunks of data related to climate or population.

Given this diversity, the government and private companies are investing in this technology for research and commercial applications. Start-ups too can scout for opportunities in software, hardware and manufacturing of smaller parts. The 2020 Union Budget...