Metrology of multi-photon states for quantum technology

量子技术是政府和科技巨头的优先事项，他们在最近的举措上花费了数十亿美元。人们普遍认为，光子是实现量子安全通信、分布式计算或成像的唯一可行途径。创新导致了许多英国量子光电子初创公司的成立，包括Nu Quantum、ORCA、Duality、Wave Photonics、Arqit和AeQig。许多人使用半导体技术来创造、控制和探测光子。随着技术的成熟，可以创造和操纵的光子态的复杂性也在增长，每隔几个月，影响最大的期刊就会报道一次突破。该项目将开发一个工具包来对这些多光子状态进行基准测试，如果终端用户想要对走向市场的设备有信心，这是迫切需要的。你将有机会在加的夫创建和描述半导体量子点源，样品生长在国家外延设备中(通过第二主管Ian Farrer博士)，并与阿拉斯泰尔·辛克莱博士和菲尔·多兰博士一起与英国卓越的计量学中心国家物理实验室合作。

Quantum Technology is a priority for governments and tech giants, who have spent billions on recent initiatives. It is widely accepted that photons are the only viable route for achieving quantum-secure communications, distributed computing or imaging. Innovation has resulted in numerous UK quantum- photonics start-ups including Nu Quantum, ORCA, Duality, Wave Photonics, Arqit, Aeqig. Many use semiconductor technology to create, control and detect photons. As technology has matured, the complexity of the photonic states that can be created and manipulated has grown, with breakthroughs reported every few months in the highest impact journals. This project will develop a toolkit to benchmark these multiphoton states, which is urgently required if end-users are to have confidence in the devices heading towards the market. You will have the chance to create and characterise semiconductor quantum-dot sources in Cardiff, with samples grown in the National Epitaxy Facility (via second supervisor Dr Ian Farrer), and to work with the National Physical Laboratory, the UK's metrology centre-of-excellence, with Dr Alastair Sinclair and Dr Phil Dolan.