PsiQuantum, a general purpose silicon photonic quantum computing company, raised $215m in a Microsoft- and Playground-led funding round. Other investors include Atomico, Founders Fund, Redpoint Ventures and BlackRock Advisors. The money will go towards building a computer with 1m qubits, or quantum bits, a general-purpose quantum computer that would be broadly useful to businesses. “PsiQuantum and Microsoft have different sets of engineering challenges to address with their distinct approaches, but the companies share the vision for a scalable, fault tolerant quantum computer,” Samir Kumar, Microsoft M12 venture fund Head.