Magnonic chaotic comb
Ruitong Sun, Guanqi Ye, and Fusheng Ma

TL;DR
This paper proposes a theoretical method to generate magnonic chaotic combs using mode coupling in magnonic systems, demonstrating their transition to chaos and potential for applications in sensing and communication.
Contribution
It introduces the concept of magnonic chaotic combs based on mode coupling, a novel approach not previously explored in magnonics.
Findings
Demonstrated magnonic frequency combs via three-wave mixing.
Showed transition to chaos through bifurcation routes.
Validated robustness using Lyapunov exponents and bifurcation analysis.
Abstract
Optical chaotic comb, possessing the key metrics of intrinsic random amplitude, phase, and frequency modulation of comb lines, emerges as a novel chaotic source in information systems for coherence tomography, parallel ranging, and secure communications. Considering the analogies between magnons and photons, the magnonic analog of optical chaotic combs is expected but not yet explored. Here, we propose a scenario of generating magnonic chaotic combs based on mode coupling mechanism in magnonic systems. Especially, we theoretically demonstrate the realization of magnonic frequency combs through three-wave mixing between ultra-strongly coupled magnons in silicon based synthetic antiferromagnet platform. It is found that the realized magnonic frequency combs can transition to chaos via various routes, i.e., subcritical Hopf bifurcation, torus-doubling bifurcation, and torus breakdown. The…
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Taxonomy
TopicsChaos control and synchronization · Neural Networks and Reservoir Computing · Quantum Mechanics and Non-Hermitian Physics
