Magnons as programmable quantum bus addressing individual qubits while overcoming transduction fragility

https://phys.org/news/2024-03-quantum-magnetic-disks.html

"nonlinear process enables some magnons inside disk to possess lower frequency than driving frequency of antenna, so microwave footprint of magnons uses less chip space... isolate microwaves from magnons using this exotic magnetic phenomena...  magnon and qubits interaction formed by vacancies of silicon atoms in silicon carbide crystal structure... manipulate qubits only with tthe lower frequency magnons"