New QuantumCore chip could simplify wiring inside quantum computers

QuantumCore has begun development of chip-scale magnetless circulators in collaboration with Professor Raafat Mansour of the University of Waterloo’s Department of Electrical and Computer Engineering. These devices aim to solve a growing problem for superconducting quantum computers, which rely on circulators to direct extremely weak microwave signals and isolate qubits from noise. Conventional cryogenic circulators use bulky ferrite materials and permanent magnets, creating integration challenges as processors scale; QuantumCore proposes a compact, nonmagnetic alternative. “Today’s quantum computers rely on circulators that are measured in centimetres, while the semiconductor industry routinely manufactures…