Full-field Coherent Quantum Imaging

全视场相干量子成像

• 批准号: EP/G011656/1
• 负责人: Miles Padgett
• 金额: $ 64.97万
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2009
• 资助国家: 英国
• 起止时间: 2009 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FG011656%2F1
• 关键词: Full; field; Coherent; Quantum; Imaging

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.

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。尽管爱因斯坦对此有争议，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形式发射的地方，每个光子的方向和能量都不确定，但对其中任何一个的测量都可以了解两者。如果其中一束光子用于照亮物体，则图像会被印到另一束光子上/从而可以通过远程相机进行检测。这称为量子或幽灵成像，将物体放置在一个位置并在另一个位置成像！这一切都要归功于量子力学的相干性。使幽灵成像发挥作用是一项技术挑战，需要检测单个光子的位置并将其与任何和所有噪声源区分开来。迄今为止，这只能通过在图像平面上前后光栅扫描单个探测器来实现/这意味着任何重影图像都需要很长时间才能记录。在这项工作中，我们将开发一个实时鬼影相机，提供实时鬼影图像。该系统将使我们能够探索量子力学解释中仍然存在争议的问题，包括海森堡不确定性原理的正确角度形式；鬼光谱的先驱，并探索在隐蔽成像、监视和传感方面的潜在应用。为了取得成功，我们将开发一种使用最先进的光子探测器、计算机控制全息图和短脉冲激光源的新方法，同时验证我们的量子方面工作需要仔细的理论分析。

项目成果

Holographic ghost imaging and the violation of a Bell inequality.

全息鬼成像和违反贝尔不等式。

• DOI: http://dx.10.1103/physrevlett.103.083602
• 发表时间: 2009
• 期刊: Physical review letters
• 影响因子: 8.6
• 作者: Jack B

Robust interferometer for the routing of light beams carrying orbital angular momentum

用于携带轨道角动量的光束路由的鲁棒干涉仪

• DOI: 10.1088/1367-2630/13/9/093014
• 发表时间: 2011-09-01
• 期刊: New Journal of Physics
• 影响因子: 3.3
• 作者: M. Lavery;A. Dudley;A. Forbes;J. Courtial;M. Padgett
• 通讯作者: M. Padgett

Precise quantum tomography of photon pairs with entangled orbital angular momentum

具有纠缠轨道角动量的光子对的精确量子断层扫描

• DOI: 10.1088/1367-2630/11/10/103024
• 发表时间: 2009-10-12
• 期刊: New Journal of Physics
• 影响因子: 3.3
• 作者: B. Jack;J. Leach;H. Ritsch;S. Barnett;M. Padgett;S. Franke
• 通讯作者: S. Franke

Entanglement of arbitrary superpositions of modes within two-dimensional orbital angular momentum state spaces

二维轨道角动量状态空间内模式任意叠加的纠缠

• DOI: http://dx.10.1103/physreva.81.043844
• 发表时间: 2010
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: Jack B

New Twist on Light Beams for Quantum Information Science

量子信息科学光束的新转折

• DOI: http://dx.10.1364/opn.21.12.000048
• 发表时间: 2010
• 期刊: Optics and Photonics News
• 作者: Boyd R