Macroscopic multiple continuous-variable (CV) entanglement plays a central role in recent CV-based approaches to quantum multipartite network, quantum communication and quantum secret sharing. We propose a novel scheme to generate stationary quadripartite CV entanglement at the macroscopic level in two coupling Fabry–Perot cavities with a flux qutrit. We treat two cavity fields and two movable mirrors as intrinsically quadripartite and study quadripartite CV entanglement among them. We demonstrate that genuine quadripartite CV entanglement can be generated in this system.

中文翻译：

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在两个耦合的光机械系统中生成四方连续变量纠缠

宏观多重连续变量（CV）纠缠在最近基于CV的量子多方网络，量子通信和量子秘密共享方法中起着核心作用。我们提出了一种新颖的方案，可以在带有通量的两个耦合Fabry-Perot腔体的宏观水平上生成固定的四方CV纠缠。我们将两个腔场和两个可移动镜视作本征四方，并研究其中的四方CV纠缠。我们证明了在该系统中可以生成真正的四方CV纠缠。