India, July 2 -- For years, quantum computing was defined largely by scientific breakthroughs, laboratory demonstrations and long-term promises. Today, it's increasingly viewed as a strategic technology. Governments, research institutions and enterprises are investing billions of dollars on quantum computing's potential - in roles from economic competitiveness and scientific leadership to national security.

The U.S. Department of Commerce in May announced plans to invest more than $2 billion in quantum computing and quantum manufacturing initiatives. The investment reflects a growing confidence that quantum tech is nearing practical impact and a national priority to build a domestic quantum ecosystem.

But, the future of quantum computin...