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Photonic Quantum Technologies

光子量子技术

基本信息

批准号：
EP/F010524/1
负责人：
Jeremy O'Brien
金额：
$ 134.6万
依托单位：
University of Bristol
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2007
资助国家：
英国
起止时间：
2007 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FF010524%2F1
关键词：
Photonic Quantum Technologies

项目摘要

Quantum mechanics tells us how the world works at its most fundamental level. It predicts very strange behaviour that can typically only be observed when things are very cold and very small. It has an inbuilt element of chance, allows superpositions of two different states, and admits super-strong correlations between objects that would be nonsensical in our everyday world / entanglement . Despite this strange behaviour, quantum mechanics is the most successful theory that we have ever had / it predicts what will happen almost perfectly!Although the theory of quantum mechanics was invited at the beginning of the last century, quantum information science has only emerged in the last decades to consider what additional power and functionality can be realised by specifically harnessing quantum mechanical effects in the encoding, transmission and processing of information. Anticipated future technologies include quantum computers with tremendous computational power, quantum metrology which promises the most precise measurements possible, and quantum cryptography which is already being used in commercial communication systems, and offers perfect security.Single particles of light / photons / are excellent quantum bits or qubits, because they suffer from almost no noise. They also have great potential for application in future quantum technologies: schemes for all optical quantum computers are a leading contender, and photons are the obvious choice for both quantum communication and for quantum metrology schemes for measuring optical path lengths. There have already been a number of impressive proof-of-principle demonstrations of photonic information science.However, photonic quantum technologies have reached a roadblock: they are stuck in the research laboratory. All of the demonstrations to date have relied on imperfect, unscalable and bulky elements with single photons travelling in air. This is not suitable for future technologies. In addition there has been no integration of these critical components which will be essential for the realisation of scalable and practical technologies. This project aims to address these problems by developing single photon sources based on diamond nanocrystals, optical wires on optical chips, and superconducting single photon detectors, to the high performance levels required. It also aims to integrate all of these components on a single optical chip, and thus bring photonic quantum technologies out of the laboratory towards the marketplace.

量子力学告诉我们世界在其最基本的层面上是如何运作的。它预测了非常奇怪的行为，通常只有在非常冷和非常小的情况下才能观察到。它具有内在的偶然性元素，允许两种不同状态的叠加，并承认对象之间的超强关联，这在我们的日常世界/纠缠中是荒谬的。尽管有这种奇怪的行为，但量子力学是我们所拥有的最成功的理论/它几乎完美地预测了将会发生的事情！尽管量子力学的理论在上个世纪初就被邀请了，但量子信息科学直到最近几十年才出现，研究通过在信息的编码、传输和处理中具体利用量子力学效应可以实现哪些额外的功率和功能。预计未来的技术包括具有巨大计算能力的量子计算机，承诺尽可能精确测量的量子计量学，以及已经在商业通信系统中使用并提供完美安全性的量子密码学。单个光/光子/粒子是优秀的量子比特或量子比特，因为它们几乎没有噪声。它们在未来的量子技术中也有巨大的应用潜力：所有光量子计算机的方案都是主要的竞争者，而光子显然是量子通信和测量光程长度的量子计量方案的选择。光子信息科学已经有了许多令人印象深刻的原理证明演示。然而，光子量子技术遇到了一个障碍：它们被困在研究实验室。到目前为止，所有的演示都依赖于不完美、不可缩放和体积庞大的元素，这些元素只有一个光子在空气中传播。这不适合未来的技术。此外，没有整合这些关键组成部分，这些组成部分将是实现可扩展和实用技术的关键。该项目旨在通过开发基于金刚石纳米晶体的单光子源、光学芯片上的光缆和超导单光子探测器来解决这些问题，以达到所需的高性能水平。它还旨在将所有这些组件集成到一个光学芯片上，从而将光子量子技术从实验室推向市场。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Integrated quantum photonics

DOI：
10.1364/qim.2012.qm3b.1
发表时间：
2012-03
期刊：
2012 12th IEEE International Conference on Nanotechnology (IEEE-NANO)
影响因子：
0
作者：
K. Aungskunsiri;D. Bonneau;J. Carolan;E. Engin;D. Fry;J. Hadden;P. Kalasuwan;J. Kennard;S. Knauer;T. Lawson;L. Marseglia;E. Martin-Lopez;J. Meinecke;G. Mendoza;A. Peruzzo;K. Poulios;N. Russell;A. Santamato;P. Shadbolt;J. Silverstone;A. C. Stanley-Clark;M. Halder;J. Harrison;D. Ho;P. Jiang;A. Laing;M. Lobino;J. Matthews;B. Patton;A. Politi;M. R. Verde;Pei Zhang;X. Zhou;M. Cryan;J. Rarity;M. G. Thompson;Siyuan Yu;J. O'Brien
通讯作者：
K. Aungskunsiri;D. Bonneau;J. Carolan;E. Engin;D. Fry;J. Hadden;P. Kalasuwan;J. Kennard;S. Knauer;T. Lawson;L. Marseglia;E. Martin-Lopez;J. Meinecke;G. Mendoza;A. Peruzzo;K. Poulios;N. Russell;A. Santamato;P. Shadbolt;J. Silverstone;A. C. Stanley-Clark;M. Halder;J. Harrison;D. Ho;P. Jiang;A. Laing;M. Lobino;J. Matthews;B. Patton;A. Politi;M. R. Verde;Pei Zhang;X. Zhou;M. Cryan;J. Rarity;M. G. Thompson;Siyuan Yu;J. O'Brien

Quantum-classical boundary for precision optical phase estimation