Coherent Coupling of Two Remote Magnonic Resonators Mediated by Superconducting Circuits
Yi Li, V. Yefremenko, M. Lisovenko, Cody Trevillian, Tomas Polakovic, T. Cecil, P. S. Barry, John E. Pearson, Ralu Divan, Vasyl Tyberkevych, C. L. Chang, U. Welp, W. K. Kwok, V. Novosad
Abstract
We demonstrate microwave-mediated distant magnon-magnon coupling on a superconducting circuit platform, incorporating chip-mounted single-crystal Y_{3}Fe_{5}O_{12} (YIG) spheres. Coherent level repulsion and dissipative level attraction between the magnon modes of the two YIG spheres are demonstrated. The former is mediated by cavity photons of a superconducting resonator, and the latter is mediated by propagating photons of a coplanar waveguide. Our results open new avenues toward exploring integrated hybrid magnonic networks for coherent information processing on a quantum-compatible superconducting platform.