Quantum computing stocks are becoming more popular on Wall Street.When it comes to investing in quantum computing stocks, it's natural for pure plays like IonQ, Rigetti Computing, or D-Wave Quantum to surface first in the conversation. What investors may not fully realize, however, is that a number of megacap tech companies are also exploring the advantages of quantum artificial intelligence (AI).For instance, cloud hyperscalers Microsoft and Amazon have each designed their own quantum chips. Meanwhile, Nvi ...