标题： 扭曲光子的压缩感知 显示英文标题

标题： Compressed sensing of twisted photons

摘要： 完全表征量子系统状态的能力是新兴量子技术中的一个关键要素。 在这里，我们提出一种受压缩感知启发的方法来确定任何秩亏缺的量子态，我们在光子轨道角动量中进行实验编码。 我们通过使用增强型CCD相机进行少量扫描，高效地重建这些量子态。 由于只需要少量强度测量，我们的技术将提供一种简便且准确的方式来识别量子源、信道和系统。 显示英文摘要

摘要： The ability to completely characterize the state of a quantum system is an essential element for the emerging quantum technologies. Here, we present a compressed-sensing inspired method to ascertain any rank-deficient qudit state, which we experimentally encode in photonic orbital angular momentum. We efficiently reconstruct these qudit states from a few scans with an intensified CCD camera. Since it requires only a few intensity measurements, our technique would provide an easy and accurate way to identify quantum sources, channels, and systems.