论文标题
量子诱导的连贯光检测和范围
Quantum Induced Coherence Light Detection and Ranging
论文作者
论文摘要
已提出并证明量子照明在光检测和范围（LIDAR）中提高信噪比（SNR）。在依靠巧合检测时，这种量子激光雷达受到检测器的响应时间的限制，并受到阻塞噪声的影响。受Zou-Wang-Mandel实验的启发，我们设计，构建和验证了量子诱导的相干性（QUIC）LIDAR，它本质上可以免疫环境和噪声。在传统的LIDAR中，直接检测反射的探针光子会因SNR恶化而遭受，以增加背景噪声。在Quic Lidar中，我们仅通过检测纠缠的参考光子来规避这一障碍，其单光子干扰条用于获得对象的距离，而反射的探针光子则用于擦除参考光子的参考光子信息。因此，伴随反射探针光的噪声对检测到的信号没有影响。我们证明了LED和激光灯的噪声弹性，以模仿背景噪声和堵塞攻击。所提出的方法铺平了一种与精确量子电磁传感和范围内噪声作斗争的新方法。
Quantum illumination has been proposed and demonstrated to improve the signal-to-noise ratio (SNR) in light detection and ranging (LiDAR). When relying on coincidence detection, such a quantum LiDAR is limited by the response time of the detector and suffers from jamming noise. Inspired by the Zou-Wang-Mandel experiment, we design, construct and validate a quantum induced coherence (QuIC) LiDAR which is inherently immune to ambient and jamming noises. In traditional LiDAR the direct detection of the reflected probe photons suffers from deteriorating SNR for increasing background noise. In QuIC LiDAR we circumvent this obstacle by only detecting the entangled reference photons, whose single-photon interference fringes are used to obtain the distance of the object, while the reflected probe photons are used to erase path information of the reference photons. In consequence, the noise accompanying the reflected probe light has no effect on the detected signal. We demonstrate such noise resilience with both LED and laser light to mimic the background noise and jamming attack. The proposed method paves a new way of battling noise in precise quantum electromagnetic sensing and ranging.
