Coherent coupling of two remote magnonic resonators mediated by superconducting circuits

cond-mat.mes-hall

/ Authors

Yi Li, Volodymyr G. Yefremenko, Marharyta Lisovenko, Cody Trevillian, Tomas Polakovic, Thomas W. Cecil, Pete S. Barry, John Pearson, Ralu Divan, Vasyl Tyberkevych

and 4 more authors

Clarence L. Chang, Ulrich Welp, Wai-Kwong Kwok, Valentine 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 towards exploring integrated hybrid magnonic networks for coherent information processing on a quantum-compatible superconducting platform.