论文标题
固定的光磁纠缠和磁通量量子状态转移
Stationary optomagnonic entanglement and magnon-to-optics quantum state transfer via opto-magnomechanics
论文作者
论文摘要
我们展示了如何在光学磁机械配置中准备稳态纠缠状态和光子光子之间的稳态纠缠状态，其中机械振动模式通过分散磁磁性相互作用将机械振动模式伴随着镁质模式，并通过辐射压力与光腔。我们发现，通过适当地驱动磁通模式和腔体同时激活磁机械的stokes和光力机械抗螺旋散射，可以创建固定的光磁纠缠状态。我们进一步表明，通过激活宏伟的状态S-S-wap相互作用并随后发送弱红色检测光脉冲以驱动腔，可以通过机械传输在脉冲的腔输出输出场中读取宏观状态。在这种新颖的光学磁机械配置中，已证明的纠缠和状态阅读方案使我们能够在固体中光学控制，准备和读取集体旋转激发的量子状态，并为研究量子镁，大镜头量子状态和镁质量子信息处理提供了有希望的机会。
We show how to prepare a steady-state entangled state between magnons and optical photons in an opto-magnomechanical configuration, where a mechanical vibration mode couples to a magnon mode in a ferrimagnet by the dispersive magnetostrictive interaction, and to an optical cavity by the radiation pressure. We find that, by appropriately driving the magnon mode and the cavity to simultaneously activate the magnomechanical Stokes and the optomechanical anti-Stokes scattering, a stationary optomagnonic entangled state can be created. We further show that, by activating the magnomechanical state-swap interaction and subsequently sending a weak red-detuned optical pulse to drive the cavity, the magnonic state can be read out in the cavity output field of the pulse via the mechanical transduction. The demonstrated entanglement and state-readout protocols in such a novel opto-magnomechanical configuration allow us to optically control, prepare, and read out quantum states of collective spin excitations in solids, and provide promising opportunities for the study of quantum magnonics, macroscopic quantum states, and magnonic quantum information processing.
