Bitcoin

Silicon-based quantum processors with cryogenic CMOS control are a step toward scalable quantum computing, but practical quantum advantage remains years away. For crypto, the main risk is eventual breaking of ECDSA, but this specific chip is far from that capability.

A silicon quantum processing unit capable of executing high-fidelity multiqubit circuits was published in Nature, with all control signals generated by a cryogenic CMOS controller and delivered via superconducting ribbon cable.