论文标题
微波访问通过腔磁通力学的纠缠
Microwave-optics Entanglement via Cavity Optomagnomechanics
论文作者
论文摘要
微波访问纠缠是建立混合量子网络的重要组成部分。在这里，提出了一种新的机制，用于在腔光磁机电系统中制备微波和光腔场之间的固定纠缠。它由铁磁性晶体中的镁模式组成，该模式通过磁偶极相互作用直接耦合到微波腔模式，并通过晶体的变形位移间接地与光腔。机械位移是由磁性力诱导的，并通过辐射压力耦合到光学腔。光学和宏伟的耦合都是分散的。镁孔纠缠是通过磁机械参数下转换创建的，该转换由同时通过同时的光机械束相互作用以及电磁状态-SWAP相互作用进一步分布在光学和微波光子上，从而产生了固定的微波器词汇。微波炉纠缠与热噪声相对于热噪声是可靠的，该噪声将在量子网络中找到广泛的潜在应用，并使用混合量子系统来处理量子信息。
Microwave-optics entanglement is a vital component for building hybrid quantum networks. Here, a new mechanism for preparing stationary entanglement between microwave and optical cavity fields in a cavity optomagnomechanical system is proposed. It consists of a magnon mode in a ferrimagnetic crystal that couples directly to a microwave cavity mode via the magnetic dipole interaction, and indirectly to an optical cavity through the deformation displacement of the crystal. The mechanical displacement is induced by the magnetostrictive force and coupled to the optical cavity via radiation pressure. Both the opto- and magnomechanical couplings are dispersive. Magnon-phonon entanglement is created via magnomechanical parametric down-conversion, which is further distributed to optical and microwave photons via simultaneous optomechanical beamsplitter interaction and electromagnonic state-swap interaction, yielding stationary microwave-optics entanglement. The microwave-optics entanglement is robust against thermal noise, which will find broad potential applications in quantum networks and quantum information processing with hybrid quantum systems.
