Waveguide quantum electrodynamics offers a platform to study the interplay between light-mediated and intrinsic matter-matter interactions. Here, the authors couple a superconducting transmission line to a model 1D magnetic material, revealing photon-induced transitions to collective excitations that evolve as temperature decreases from super radiant spin modes to magnons, with implications for quantum information processing and spintronic devices.
- Sebastián Roca-Jerat
- Marcos Rubín-Osanz
- Fernando Luis