Quantum computing aims to revolutionize computer power by using qubits instead of traditional bits, potentially solving problems in minutes that would take millions of years with current technology. Google believes commercial applications could be available in five years, but mainstream adoption may take decades. Rigetti Computing and D-Wave Quantum are early movers in the space, with Rigetti standing out for its pick-and-shovel business model. D-Wave focuses on quantum annealing for optimization, with a 293% year-to-date gain. Both companies face long-term challenges and high price-to-sales ratios, making them risky investments despite their potential.

Read more at Yahoo Finance: 2 Top Quantum Computing Stocks to Watch in November