Switchable Dissipative Ising coupling Based on Three-Body Coupling in magnon systems

TL;DR

This paper introduces a method to achieve switchable dissipative Ising coupling in magnon systems via three-body interactions, enabling flexible quantum simulations and potential quantum computing applications.

Contribution

It proposes a novel scheme to realize tunable dissipative Ising interactions in magnon systems using phase-controlled nonlinear mechanical pumping.

Findings

Numerical simulations confirm the scheme's effectiveness.

The method is robust against strong uncontrollable dissipation.

It enables switching between ferromagnetic and antiferromagnetic interactions.

Abstract

Magnonic systems present a compelling platform for quantum technology, owing to their strong capacity to form hybrid quantum systems via diverse couplings. To unlock the full potential of these systems, the engineering of flexible coupling between multiple magnon modes is essential. Here, we propose a method to realize switchable dissipative Ising coupling in magnon systems, leveraging the three-body coupling among photon, phonon, and magnon. This type of dissipative coupling is a critical component for constructing Ising machines designed to solve complex combinatorial optimization problems. By dynamically tuning the phase of a nonlinear mechanical pump, we demonstrate the realization of both ferromagnetic and antiferromagnetic dissipative interactions. The validity of the scheme is confirmed by numerical simulations, which also demonstrate its robustness against a strong uncontrollable part of dissipation. Our work provides a versatile tool that can facilitate the implementation of magnon-based quantum computing and the exploration of many-body magnon physics.