Plasmonic metasurfaces for high-dimensional quantum information processing

该战略项目的目标是开发一种新颖的、可扩展的非经典光态源，以获得用于高级量子信息处理的高维编码能力。对安全高速电信的快速增长的需求将很快需要一种新技术，该技术可以提供低功耗、完美的安全性和高数据速率，以处理大量敏感数据。在这个为期三年的项目中，我们的目标是探索一种创新的解决方案来满足这些要求，通过开发能够产生纠缠在轨道角动量中的光子的纳米等离子体元表面。这些设备将允许访问超大字母表进行编码和处理，从而开辟了高速量子光通信的新前沿。拟议的研究将使来自INRS-EMT和意大利理工学院（国际合作者）的学术团队成员，以及他们的两个工业合作伙伴1 QBit和NewLight Photonics，共同努力追求这种具有前所未有性能的新量子技术。纳米尺度的操作将导致超密集集成和低功耗，而可定制的非线性光学响应和可扩展性将允许生成任意复杂的量子态。这种研究必将成为等离子体激元驱动量子源的基础物理学的基石，并有望导致先进量子密码学和计算的实际工业应用。活跃在这个新兴市场的工业合作伙伴的参与以及研究团队成员的互补专业知识代表了所开发技术未来商业化的理想条件。最后，来自该项目的新知识和对HQP的相关培训必将有助于提高加拿大在高技术部门的竞争力。

This Strategic project targets the development of a novel, scalable source of nonclassical states of light to access high-dimensional encoding capabilities for advanced quantum information processing. The rapidly increasing demand for secure high-speed telecommunications will soon require a new technology that can provide low-power consumption, perfect security and high data-rates for handling large amounts of sensitive data. In this three-year project, we aim to explore an innovative solution to fulfill these requirements, by developing nanoplasmonic metasurfaces capable of generating photons entangled in their orbital angular momenta. These devices will grant access to extremely large alphabets for encoding and processing, thus opening the new frontier of high-speed quantum optical communications. The proposed research will enable the academic team members from the INRS-EMT and the Italian Institute of Technology (international collaborator), together with their two industrial partners, 1QBit and NewLight Photonics, to lead a concerted effort in the pursuit for this new quantum technology with unprecedented performances. Operation at the nanoscale will result in ultra-dense integration and low-power consumption, while tailorable nonlinear optical response and scalability will allow the generation of arbitrarily-complex quantum states. Such investigation is bound to be a cornerstone in the fundamental physics of plasmon-driven quantum sources and promises to lead to practical industrial applications regarding advanced quantum cryptography and computing. The involvement of industrial partners that are active in this new-forming market and the complementary expertise of the research team members represent the ideal condition towards the future commercialization of the developed technology. Finally, the new knowledge originating from this project and the associated training of HQP will surely contribute to augment Canada's competitiveness in the high-technology sector.