Magnon blockade in a PT-symmetric-like cavity magnomechanical system

TL;DR

This paper explores magnon blockade in a PT-symmetric-like cavity magnomechanical system, analyzing how system parameters influence blockade effects and proposing conditions for experimental realization.

Contribution

It introduces a theoretical framework for magnon blockade in PT-symmetric-like systems, including analytical and numerical analysis of correlation functions and optimal detuning.

Findings

Perfect magnon blockade achievable under weak parameter mechanism

Analytical and numerical calculation of second-order correlation functions

Identification of optimal detuning values for blockade

Abstract

We investigate the magnon blockade effect in a parity-time (PT) symmetric-like three-mode cavity magnomechanical system involving the magnon-photon and magnon-phonon interactions. In the broken and unbroken PT-symmetric regions, we respectively calculate the second-order correlation function analytically and numerically and further determine the optimal value of detuning. By adjusting different system parameters, we study the different blockade mechanisms and find that the perfect magnon blockade effect can be observed under the weak parameter mechanism. Our work paves a way to achieve the magnon blockade in experiment.