Commercial-ready entangled photon source based on poled optical fibers

基于极化光纤的商用纠缠光子源

• 批准号: 507623-2017
• 负责人: Qian, Li
• 金额: $ 1.82万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640053
• 关键词: Commercial; ready; entangled; photon; source

Quantum entanglement sources are to quantum technology what lasers are to optical technology. The invention of lasers hascreated a photonics industry worth of $650 billion in 50 years, with applications cover everything from DVD players to industrialcutting and welding, from laser surgery to long-distance communication. The Internet would not have been possible without lasers.Likewise, entangled photon sources will play an equally important role in not-too-distant future. They produce photons exhibitingquantum correlations that cannot be mimicked by classical particles. The quantum correlations can be harnessed to performfunctions impossible to achieve classically, such as unconditional security in communication, efficient algorithm in quantumcomputing, and ultra-high resolution in quantum imaging.A basic quantum entanglement source produces entangled photon pairs, which are pairs of photons prepared in a specialquantum state that exhibits strong correlations. Such correlations enable many unconventional usages of the quantum resource.Entanglement-based quantum key distribution (QKD), for example, utilizes the correlation of the photons sent to two remoteparties and allows them to share a common cryptographic key and any eavesdropping attempt would result in a detectabledeterioration of correlation.The aim of this project is to develop a practical, low-cost, turn-key entangled photon source based entirely on fiber-compatiblecomponents. We will leverage Ozs expertise in photonic packaging and product development. Quantum technology will play animportant role in the 21st century. Entanglement sources are essential for many quantum applications. This proposal aims to takethe first step towards developing commercially viable entanglement sources.

量子纠缠源之于量子技术就像激光之于光学技术一样。激光器的发明在50年内创造了价值6500亿美元的光子产业，应用范围涵盖从DVD播放器到工业切割和焊接，从激光手术到长途通信等各个领域。如果没有激光，互联网就不可能存在。同样，纠缠光子源将在不久的将来发挥同样重要的作用。它们产生的光子表现出经典粒子无法模仿的量子相关性。利用量子相关性可以实现经典无法实现的功能，例如通信中的无条件安全、量子计算中的高效算法以及量子成像中的超高分辨率。基本的量子纠缠源产生纠缠光子对，这是准备好的光子对处于表现出强相关性的特殊量子态。这种相关性使得量子资源的许多非常规用途成为可能。例如，基于纠缠的量子密钥分发（QKD）利用发送到两个远程方的光子的相关性，并允许它们共享公共密钥，任何窃听尝试都会导致该项目的目的是开发一种实用的、低成本的、交钥匙的、完全基于光纤兼容组件的纠缠光子源。我们将利用 Ozs 在光子封装和产品开发方面的专业知识。量子技术将在21世纪发挥重要作用。纠缠源对于许多量子应用至关重要。该提案旨在朝着开发商业上可行的纠缠源迈出第一步。