Qubits differ from classical bits, which are coded as only 0 or 1. A qubit can be a combination of both 0 and 1 simultaneously. One way to think of it is as a coin spinning between a 0 and a 1 axis.

Three of the four innovations have been developed by startups funded under the NQM, while the fourth emerged from the mission’s academic research hub at IIT Bombay.

Maybe none of these quantum computing stocks will make you a millionaire. But one might be the best-positioned to do so.