2017/10/24 by Babak Zare Rameshti, G. Bauer, Gerrit E. W. Bauer
Physics and Astronomy · #Atomic physics #Condensed matter physics #Coupling (piping) #Dielectric #Geometry #Light scattering #Magnetic field #Magnon #Materials science #Mechanical and Optical Resonators #Microwave #Microwave cavity #Mie scattering #Photon #Physics #Quantum and electron transport phenomena #Quantum mechanics #Quantum optics and atomic interactions #Resonance (particle physics) #SPHERES #Scattering #Symmetry (geometry) #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.97.014419
published as Phys. Rev. B 97, 014419 (2018) · 9 pages, 7 figures
arxiv created 2017/10/24 · openalex publication_date 2018/01/18 · arxiv updated 2018/01/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The interaction between two magnetic spheres in microwave cavities is studied by Mie scattering theory beyond the magnetostatic and rotating wave approximations. We demonstrate that two spatially separated dielectric and magnetic spheres can be strongly coupled over a long distance by the electric field component of standing microwave cavity modes. The interactions split acoustical (dark) and optical (bright) modes in a way that can be mapped on a molecular orbital theory of the hydrogen molecule. Breaking the symmetry by assigning different radii to the two spheres introduces ``ionic'' character to the magnonic bonds. These results illustrate the coherent and controlled energy exchange between objects in microwave cavities.