Fundamental analysis of Quantum sensing using non-classical intensity correlations

单光子探测器的出现和控制光子的时间戳释放的能力意味着非经典强度相关性可以用于感知环境。在这里，基于初步的实现，我们提出了这样一个量子传感平台的基本分析和设计。具体来说，我们提出了一个协同努力来开发理论（由PI，Adve教授领导）和硬件开发（由Helmy教授领导）-目标是超越桌面实验，以了解基于非经典强度相关性的量子传感器的基本优点和局限性。我们还将与我们的研究伙伴加拿大国防研究与发展局（DRDC）密切合作，根据需要利用他们的实验室设施。该提案设想了一个研究计划，从基本的信号处理概念（如信噪比和距离分辨率）开始，发展新的概念，如多普勒（目标速度）的测量，导致波束形成，杂波测量和缓解。这些都是现代系统的基本组成部分，如果量子雷达/激光雷达要在操作环境中有用，就必须解决这些问题。理论概念将与硬件开发并行开发，例如新型纠缠态，超纠缠，多发射器/接收器能力和系统构建。雷达传感器本质上是一种信号处理设备-当我们考虑非经典传感的新范式时，我们迫切需要彻底了解新的信号处理方面-同时考虑实际量子传感系统中可能的（和不可能的）。这项拟议中的研究工作将导致新的，实用的传感器，如测距仪和量子增强成像仪。这确实是传感技术的新前沿。

The advent of single-photon detectors and the ability to control the time-stamped release of photons implies that non-classical intensity correlations can be used to sense the environment. Here, building on the preliminary implementations, we propose a fundamental analysis and design of such a quantum sensing platform. Specifically, we propose a synergistic effort to develop both the theory (led by PI, Prof. Adve) and hardware development (led by Prof. Helmy) - the goal is to move beyond table-top experiments to understand the fundamental benefits and limitations of a quantum sensor based on non-classical intensity correlations. We will also work closely with our research partner, Defense Research and Development Canada (DRDC), taking advantage of their laboratory facilities as needed. This proposal envisions a research program that begins with the fundamental signal processing concepts such as signal-to-noise ratio and range resolution to developing new concepts such as the measurement of Doppler (target velocity), leading up to beamforming, clutter measurement and mitigation. These are all essential components of a modern system and must be addressed if quantum radar/lidar is to be useful in an operational setting. The theoretical concepts will be developed in parallel with hardware developments such as novel entanglement states, hyper entanglement, multi-transmitter/receiver capabilities and a system build. A radar sensor is essentially, a signal processing device - as we consider the new paradigm of non-classical sensing, we urgently require a thorough understanding of the new signal processing aspects - while accounting for what is (and is not) possible within practical quantum sensing systems. This proposed research effort will leads to novel, practical, sensors such as range finders and quantum-enhanced imagers. This is, truly, the new frontier of sensing technologies.