The emergence of coherent quantum feedback control (CQFC) as a new paradigm for precise manipulation of dynamics of complex quantum systems has led to the development of efficient theoretical modeling and simulation tools and opened avenues for new practical implementations. This work explores the applicability of the integrated silicon photonics platform for implementing scalable CQFC networks. If proven successful, on-chip implementations of these networks would provide scalable and efficient nanophotonic components for autonomous quantum information processing devices and ultra-low-power optical processing systems at telecommunications wavelengths. We analyze the strengths of the silicon photonics platform for CQFC applications and identify the key challenges to both the theoretical formalism and experimental implementations. In particular, we determine specific extensions to the theoretical CQFC framework (which was originally developed with bulk-optics implementations in mind), required to make it fully applicable to modeling of linear and nonlinear integrated optics networks. We also report the results of a preliminary experiment that studied the performance of an in situ controllable silicon nanophotonic network of two coupled cavities and analyze the properties of this device using the CQFC formalism.

中文翻译：

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可扩展量子相干反馈网络的硅纳米光子学

相干量子反馈控制（CQFC）作为对复杂量子系统动力学进行精确控制的新范例的出现，导致了有效理论建模和仿真工具的开发，并为新的实际实现方法开辟了道路。这项工作探索了集成硅光子平台用于实施可扩展CQFC网络的适用性。如果证明成功，这些网络的片上实现将为电信波长的自治量子信息处理设备和超低功率光学处理系统提供可扩展且高效的纳米光子组件。我们分析了用于CQFC应用的硅光子平台的优势，并确定了理论形式主义和实验实施的主要挑战。特别是，我们确定了对理论CQFC框架的特定扩展（该框架最初是在考虑大光学实现的情况下开发的），以使其完全适用于线性和非线性集成光学网络的建模。我们还报告了初步实验的结果，该实验研究了两个耦合腔的原位可控硅纳米光子网络的性能，并使用CQFC形式分析了该器件的性能。