AI 中文总结
该研究构建了与蜿蜒波导多点耦合的旋转巨型光机械腔，利用其非互易自干涉机制，在单/双音驱动下实现相位可控及非互易的声子冷却、机械模式稳态压缩，为非互易量子效应提供了新途径。
AI 中文摘要
我们研究了一个旋转的光机械腔，该腔在多个空间分离的点处与蜿蜒波导耦合，形成巨型腔结构。由此产生的自干涉使有效光驱动、线宽和频移强烈依赖于波导中的传播相位，而旋转诱导的萨格纳克-菲佐频移会导致顺时针（CW）和逆时针（CCW）腔模式经历不同的干涉相位。在单音驱动下，该机制实现了相位控制的声子冷却，当腔旋转时，还会产生非互易冷却：一个传播方向接近机械基态区域，而相反方向的冷却效率较低。在双音驱动下，相同的干涉机制为机械模式构建了压缩库，产生的稳态压缩在腔旋转时同样变为非互易。这些结果确立了多点自干涉作为一种通用机制，可用于相位控制的光机械库工程，且表明其与腔旋转结合时，为实现非互易量子效应提供了途径。
英文摘要
We study a spinning optomechanical cavity that is coupled to a meandering waveguide at multiple spatially separated points, forming a giant-cavity configuration. The resulting self-interference makes the effective optical driving, linewidth, and frequency shift strongly dependent on the propagation phase in the waveguide, while the rotation-induced Sagnac-Fizeau shift causes the clockwise (CW) and counterclockwise (CCW) cavity modes to experience distinct interference phases. Under single-tone driving, this mechanism enables phase-controlled phonon cooling and, in the presence of cavity rotation, nonreciprocal cooling, with one propagation direction approaching the mechanical ground-state regime while the opposite direction remains less efficiently cooled. Under two-tone driving, the same interference mechanism engineers a squeezed reservoir for the mechanical mode, producing steady-state squeezing that likewise becomes nonreciprocal under cavity rotation. These results establish multi-point self-interference as a versatile mechanism for phase-controlled optomechanical reservoir engineering and show that, when combined with cavity rotation, it provides a route to nonreciprocal quantum effects.
