The authors show phase-controlled Floquet coupling between bright and dark magnon modes in a two-YIG-sphere cavity, enabling on-demand isolation of magnon signals from the cavity, with switching shown in simulation and spectral evidence in experiment.
Programmable Real-Time Magnon Interference in Two Remotely Coupled Magnonic Resonators
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abstract
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.
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On-Demand Magnon Resonance Isolation in Cavity Magnonics
The authors show phase-controlled Floquet coupling between bright and dark magnon modes in a two-YIG-sphere cavity, enabling on-demand isolation of magnon signals from the cavity, with switching shown in simulation and spectral evidence in experiment.