US engineers create quantum ‘super highway’ for instant processor communication

MIT researchers developed a device for direct communication between quantum processors using a superconducting waveguide. This "all-to-all" system improves upon "point-to-point" methods, reducing errors and increasing efficiency. The device demonstrated remote entanglement between two four-qubit processors. Using reinforcement learning, the team optimized photon absorption rates to over 60% efficiency. This advancement brings us closer to building larger, more reliable quantum computing systems and could expand to other quantum technologies.