Manipulation of diverse quantum correlations based on a hybrid optomagnomechanical system

TL;DR

This paper presents a flexible, all-optical scheme for generating and manipulating various quantum correlations in a hybrid optomagnomechanical system, enabling advanced quantum communication tasks.

Contribution

It introduces a novel, experimentally feasible method to control bipartite, multipartite, and collective quantum correlations by tuning system parameters.

Findings

Selective generation of bipartite and tripartite entanglements.

Deterministic manipulation of bipartite, multipartite, and pentapartite steerings.

Multiple coupling channels can be tuned simultaneously for flexible control.

Abstract

Flexible manipulation of quantum correlation resources enables the implementation of diverse quantum tasks based on hybrid quantum networks, where atom-magnon and optomagnonic entanglements and steerings play important roles. In this work, we propose an effective scheme to generate and manipulate quantum entanglements and steerings based on a hybrid optomagnomechanical system, which is composed of a polarizer, an optical cavity with YIG bridge as one end, and an atomic ensemble in it. According to the results of the parameter dependence of various quantum correlations, we can selectively generate bipartite and genuine tripartite entanglements and deterministically manipulate the concrete situation of bipartite, multipartite steerings, and collective pentapartite steering, by adjusting the polarization direction of the driving laser and the Tavis-Cummings coupling strength. Our all-optical controlled scheme is flexible, convenient, compact, and experimentally feasible, because multiple coupling channels can be tuned simultaneously. This work provides a new perspective for implementing specialized quantum tasks, such as hierarchical ultra-secure multi-user quantum communications.