Magnon interference is a signature of coherent magnon interactions for coherent information processing. In this work, we demonstrate programmable real-time magnon interference, with examples of nearly perfect constructive and destructive interference, between two remotely coupled yttrium iron garnet spheres mediated by a coplanar superconducting resonator. Exciting one of the coupled resonators by injecting single- and double-microwave pulse leads to the coherent energy exchange between the remote magnonic resonators and allows us to realize a programmable magnon interference that can define an arbitrary state of coupled magnon oscillation. The demonstration of time-domain coherent control of remotely coupled magnon dynamics offers new avenues for advancing coherent information processing with circuit-integrated hybrid magnonic networks.
@article{arxiv.2309.04289,
title = {Programmable Real-Time Magnon Interference in Two Remotely Coupled Magnonic Resonators},
author = {Moojune Song and Tomas Polakovic and Jinho Lim and Thomas W. Cecil and John Pearson and Ralu Divan and Wai-Kwong Kwok and Ulrich Welp and Axel Hoffmann and Kab-Jin Kim and Valentine Novosad and Yi Li},
journal= {arXiv preprint arXiv:2309.04289},
year = {2023}
}