论文标题
利用扭曲光子对的量子成像
Quantum imaging exploiting twisted photon pairs
论文作者
论文摘要
两光子状态的量子相关已被用来抑制成像至单光子水平的环境噪声。但是，光子对的相干面积的大小限制了基于空间相关性的量子成像的应用。在这里，我们提出了一种量子成像方案，该方案利用可调的空间相关区域利用扭曲的光子对，以规避此限制。我们采用大量密度重合来增强成像信号。具体而言，我们引入了一个重新刻度的图像信号，该信号对光子脉冲的背景强度分布曲线免疫。我们在成像过程中揭示了抗堆的光子对与束光子对之间的破坏性干扰。我们的工作可以为基于扭曲的量子量子全息和量子显微镜铺平一种方法。
Quantum correlation of two-photon states has been utilized to suppress the environmental noise in imaging down to the single-photon level. However, the size of the coherence area of photon pairs limits the applications of quantum imaging based on spatial correlations. Here, we propose a quantum imaging scheme exploiting twisted photon pairs with tunable spatial-correlation regions to circumvent this limitation. We employ a bulk-density coincidence to enhance the imaging signal. Specifically, we introduce a re-scaled image signal, which is immune to the background intensity distribution profile of the photon pulse. We reveal a destructive interference between the anti-bunched photon pair and bunched photon pair in the imaging process. Our work could pave a way for twisted-photon-based quantum holography and quantum microscopy.
