Full-field Coherent Quantum Imaging

量子纠缠是相互分离的物体之间存在的不可见的非经典联系。尽管受到爱因斯坦的争议，但纠缠现在被认为是宇宙的基本属性。光源存在于光子以纠缠对的形式发射的地方，每个光子在方向和能量上都是不确定的，但是对其中任何一个光子的测量都能得到两者的信息。如果其中一束光子被用来照亮一个物体，那么图像就会被印到另一束光子上，从而使远程摄像机能够进行检测。这被称为量子或幽灵成像，一个物体放在一个地方，在另一个地方成像！这都要归功于量子力学的相干性。使幽灵成像工作是一项技术挑战，人们需要检测单个光子的位置，并将它们与任何和所有噪声源区分开来。到目前为止，这只能通过在图像平面上前后扫描单个探测器的光栅来实现/这意味着任何幽灵图像都需要很长时间才能记录下来。在这项工作中，我们将开发一个实时鬼相机给现场鬼图像。该系统将允许我们探索量子力学解释中仍有争议的问题，包括海森堡测不准原理的正确角度形式；幽灵光谱的先驱和探索潜在的应用在隐蔽成像，监视和传感。为了成功，我们将开发一种新的方法，使用最先进的光子探测器，计算机控制的全息图和短脉冲激光源，而验证我们工作的量子方面将需要仔细的理论分析。

Quantum entanglement is the invisible non-classical link that can exist between objects separated from each other. Although disputed by Einstein, entanglement is now accepted as a fundamental property of the universe. Light sources exist where photons are emitted as entangled pairs, each photon is ill-defined in direction and energy, but measurement of either gives knowledge of both. If one of the beams of photons is used to illuminate an object, then the image is imprinted onto the other / enabling detection by a remote camera. This is called Quantum or Ghost Imaging, an object placed in one location and be imaged at another! This is all thanks to the coherence of quantum mechanics.Making Ghost Imaging work is a technological challenge, one needs to detect the position of individual photons and distinguish these from any and all sources of noise. To date this has only been possible by raster-scanning single detectors backwards and forwards over the image plane / meaning any Ghost image takes a long time to record. In this work we will develop a real-time Ghost Camera giving live Ghost Images.The system will allow us to explore still disputed questions in the interpretation of Quantum Mechanics including the correct angular form of Heisenberg's uncertainty principle; the pioneering of ghost spectroscopy and explore potential applications in covert imaging, surveillance and sensing.To succeed we will develop a new way of using state of the art photon detectors, computer controlled holograms and short pulse laser sources, while verifying the quantum aspects of our work will require a careful theoretical analysis.