Phase-mediated magnon chaos-order transition in cavity optomagnonics

TL;DR

This paper theoretically investigates a phase-mediated transition from chaos to order in cavity optomagnonics, revealing how microwave power induces complex nonlinear dynamics with potential applications in secure communication.

Contribution

It introduces the concept of phase-mediated magnon chaos-order transition in cavity optomagnonics, a largely unexplored phenomenon in this field.

Findings

Magnon dynamics transition from order to chaos with increased microwave power

The chaos-order transition is phase-mediated, differing from normal chaos

Results enhance understanding of nonlinear phenomena in optomagnonical systems

Abstract

Magnon as a quantized spin wave has attracted extensive attentions in various fields of physics, such as magnon spintronics, microwave photonics, and cavity quantum electrodynamics. Here, we explore theoretically magnon chaos-order transition in cavity optomagnonics, which is still remains largely unexplored in this emerging field. We find that the evolution of the magnon experiences the transition from order to period-doubling bifurcation and finally enter chaos by adjusting the microwave driving power. Different from the normal chaos, the magnon chaos-order transition proposed here is phase-mediated. Beyond their fundamental scientific significance, our results will contribute to the comprehending of nonlinear phenomena and chaos in optomagnonical system, and may find applications in chaos-based secure communication.