Li Ying, Jiao Ya-Feng, Liu Jing-Xue, Miranowicz Adam, Zuo Yun-Lan, Kuang Le-Man, Jing Hui
Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University, Changsha 410081, China.
Faculty of Physics, Institute of Spintronics and Quantum Information, Adam Mickiewicz University, Poznań 61-614, Poland.
Nanophotonics. 2021 Nov 2;11(1):67-77. doi: 10.1515/nanoph-2021-0485. eCollection 2022 Jan.
The polarizations of optical fields, besides field intensities, provide more degrees of freedom to manipulate coherent light-matter interactions. Here, we propose how to achieve a coherent switch of optomechanical entanglement in a polarized-light-driven cavity system. We show that by tuning the polarizations of the driving field, the effective optomechanical coupling can be well controlled and, as a result, quantum entanglement between the mechanical oscillator and the optical transverse electric mode can be coherently and reversibly switched to that between the same phonon mode and the optical transverse magnetic mode. This ability to switch optomechanical entanglement with such a vectorial device can be important for building a quantum network being capable of efficient quantum information interchanges between processing nodes and flying photons.
除了场强之外，光场的偏振为操纵相干光与物质相互作用提供了更多的自由度。在此，我们提出了如何在偏振光驱动的腔系统中实现光机械纠缠的相干切换。我们表明，通过调节驱动场的偏振，可以很好地控制有效的光机械耦合，结果，机械振子与光学横向电模之间的量子纠缠可以相干且可逆地切换为同一声子模与光学横向磁模之间的量子纠缠。利用这种矢量装置切换光机械纠缠的能力对于构建一个能够在处理节点和飞行光子之间进行高效量子信息交换的量子网络可能至关重要。
