论文标题
级联的光力系统中的全光相干量子噪声取消
All-optical coherent quantum-noise cancellation in cascaded optomechanical systems
论文作者
论文摘要
连贯的量子噪声取消（CQNC）可用于光学传感器中以超过标准量子极限（SQL）。在本文中，我们研究了一种使用CQNC策略的光力力传感器，该传感器通过使用全光学有效的负负质量振荡器来级联使用CQNC策略。具体而言，我们分析了匹配条件，损失并比较了两种可能的布置，其中光学机械或负质量系统首先伴侣伴侣伴侣对光。尽管这两种顺序都产生了子-SQL的性能，但我们发现将有效的负质量振荡器放置在光力传感器之前，对于实际参数始终是有利的。级联方案的模块化设计可以通过避免系统组件之间的不良耦合来更好地控制子系统，同时保持与早期提出的集成配置相似的性能。我们通过对微观力学实施的案例研究结束了我们的工作。
Coherent quantum noise cancellation (CQNC) can be used in optomechanical sensors to surpass the standard quantum limit (SQL). In this paper, we investigate an optomechanical force sensor that uses the CQNC strategy by cascading the optomechanical system with an all-optical effective negative mass oscillator. Specifically, we analyze matching conditions, losses and compare the two possible arrangements in which either the optomechanical or the negative mass system couples first to light. While both of these orderings yield a sub-SQL performance, we find that placing the effective negative mass oscillator before the optomechanical sensor will always be advantageous for realistic parameters. The modular design of the cascaded scheme allows for better control of the sub-systems by avoiding undesirable coupling between system components, while maintaining similar performance to the integrated configuration proposed earlier. We conclude our work with a case study of a micro-optomechanical implementation.
