Generation of optomicrowave and optomagnonic entanglements in cascaded optomagnomechanical systems

TL;DR

This paper proposes a scheme to enhance and generate quadripartite entanglement in a cascaded optomagnomechanical system, providing insights into parameter conditions for optimal entanglement in hybrid quantum networks.

Contribution

It introduces a novel method for entanglement enhancement and quadripartite entanglement generation in cascaded optomagnomechanical systems, analyzing parameter dependencies and optimal conditions.

Findings

Significant entanglement enhancement in the second cavity.

Quadripartite entanglement can be achieved throughout the system.

Optimal parameters for maximal entanglement are identified.

Abstract

The optomagnomechanical system, which involves flexible nonlinearities, is one of the promising physical platforms for studying the preparation and manipulation of quantum entanglements, as well as the construction of hybrid quantum networks. A scheme for entanglement enhancement and quadripartite entanglement generation is proposed, based on a cascaded optomagnomechanical system. On the one hand, optomicrowave and optomagnonic entanglements within the two subsystems are investigated, and their parameter dependence, such as detuning, decay, coupling strength, and transmission efficiency, is discussed. On the other hand, the parameter conditions for achieving optimal optomicrowave and optomagnonic quadripartite entanglements are also obtained. The results show that significant enhancement of optomicrowave and optomagnonic entanglements in the second cavity can be obtained in a certain range of parameters. Under optimized parameter conditions, optomicrowave and optomagnonic quadripartite entanglements can be generated throughout the entire cascaded system. This research provides a theoretical basis for the manipulation of quantum entanglement, the transmission of the magnon's state, and the construction of hybrid quantum networks involving different physical systems.