Europe is aiming to become the global leader in quantum computing. IQM, a Finnish start-up, is one of the building blocks of that endeavor. The company generated buzz last week, raising more than $300 million in a funding round led by a U.S. investment firm. That Series B capital raising could be an early sign that investors are recognizing how the continent has emerged as a hotbed of ingenuity for quantum in recent years. Privately traded pure plays are springing up. “If you look at the technology, it’s s ...