论文标题
改善分辨率敏感性在子拍摄噪声成像中进行贸易
Improving resolution-sensitivity trade off in sub-shot noise imaging
论文作者
论文摘要
量子技术的挑战之一是意识到在理想系统，实际应用中预测的量子优势，这些应用必须应对不足和效率低下。在量子计量学中，子射击噪声成像（SSNI）和传感方法可以在现实情况下提供真正的量子增强。然而，到目前为止，迄今为止实现的宽场SSNI方案在分辨率与经典对应物的敏感性增长之间取消了权衡：小像素或集成区域对于实现高成像分辨率是必要的，但是较大的像素允许更好地检测量子相关性，这意味着更大的量子优势。在这里，我们展示了如何优化SSNI协议以显着改善分辨率，而无需放弃灵敏度的量子优势。我们就以前的演示中使用的简单协议显示了线性分辨率的改进（最高因子3）。
One of the challenges of quantum technologies is realising the quantum advantage, predicted for ideal systems, in real applications, which have to cope with decoherence and inefficiencies. In quantum metrology, sub-shot-noise imaging (SSNI) and sensing methods can provide genuine quantum enhancement in realistic situations. However, wide field SSNI schemes realized so far suffer a trade-off between the resolution and the sensitivity gain over classical counterpart: small pixels or integrating area, are necessary to achieve high imaging resolution, but larger pixels allow a better detection efficiency of quantum correlations, which means a larger quantum advantage. Here we show how the SSNI protocol can be optimized to significantly improve the resolution without giving up the quantum advantage in the sensitivity. We show a linear resolution improvement (up to a factor 3) with respect to the simple protocol used in previous demonstrations.
