Which of these quantum computing companies has a brighter future?When investors talk about artificial intelligence (AI) stocks, they often focus on chipmakers like Nvidia (NVDA 0.57%), which supplies the data center GPUs used for processing complex AI tasks, or cloud giants like Microsoft, which develop the actual AI software.Yet quantum computing companies could also benefit from the secular expansion of the AI market. Unlike traditional computers, which store their data in binary bits of zeros and ones, q ...