Photonic, a Canadian quantum computing company, has raised $100 million for its all-silicon quantum computing platform with the help of new partner Microsoft. The investment and partnership come as experts in the industry praise Photonic's novel approach to quantum computing as a "breakthrough" for the field. Photonic's technique involves building quantum computers using silicon spin qubits with a spin-photon interface, which the company believes is the missing piece of the puzzle when it comes to quantum computing. The partnership with Microsoft is expected to help bring a fault-tolerant, fully-functional, quantum networking system to market within the next five years.