Topological simulation and chiral spin-spin interaction in driven cavity magnonics

Magnon-based hybrid quantum systems show potential for quantum information processing, but their scalability is questionable, due to the short-range nature of direct magnon coupling. The authors propose and analyze a practical design for scalable hybrid quantum devices that enable remote coupling of magnon arrays through microwave photons within a superconducting coplanar-waveguide resonator. By modulating the magnon frequencies, topological magnon chains are obtained, which enables tunable chiral interactions with solid-state spins. This work opens possibilities for quantum computing, quantum communication, and quantum sensing based on magnons and solid-state spins.