A new hybrid circuit directs quantum signals in one direction only

Image: Yi Li/Argonne National Laboratory · anl.gov Argonne National Laboratory and the University of Illinois Urbana-Champaign have built the first hybrid circuit system coupling propagating spin waves in magnetic materials with a superconducting circuit. Researchers demonstrated how ripples in a material’s magnetic state, spin waves, can interact with superconducting circuits, creating a system where these two methods of carrying information work together. “This is the first time we’ve shown the proof of concept, demonstrating that we can couple spin waves to a superconducting resonator,” said Yi Li, an Argonne scientist.…