Atomic-Photonic Hybrid Devices for Next-Generation Quantum Sensors

用于下一代量子传感器的原子光子混合器件

基本信息

批准号：
1805873
负责人：
金额：
--
依托单位：
University of Sussex
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2016
资助国家：
英国
起止时间：
2016 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-1805873
关键词：
Atomic Photonic Hybrid Devices Next

项目摘要

This project will develop evolutionary algorithms to find state-of-the-art quantum states for a range of applications in realistic experimental settings.We will start with states that are known to perform a particular task well and then see how their performance is altered under 'mutations'.The beauty of this methodology is that it is very broadly applicable. The scheme can be tailored so that it only includes operations that are currently available in the laboratory, accounts for imperfections and losses specific to a particular system, and includes the important role of implementable measurements. It can also be updated easily as new experimental capability becomes available and even be used to guide what new capability would make the most difference in the future.We have carried out an initial toy-model of this process (see Fig. 1), which has shown that we can find new quantum states that achieve considerable gains in the precision of measurement schemes over the states that are commonly used. This is very exciting and other groups are now starting to look at evolutionaryalgorithms in a different context [1]. The project will start by setting up the general algorithm. Once this is operational, we will begin by applying it to the study of nitrogen vacancy (NV) centres in diamond in the context of magnetic field sensing and secure communications [2]. We will work closely with experimentalcollaborators and the constraints on the algorithm will be informed by what can be achieved in the laboratory. We will then seek broader applications in a range of systems such as cold atoms or quantum dots.

该项目将开发进化算法，以找到最先进的量子态，用于现实实验环境中的一系列应用。我们将从已知能够很好地执行特定任务的状态开始，然后看看它们的性能在“突变”。这种方法的美妙之处在于它的适用范围非常广泛。该方案可以进行定制，使其仅包括实验室当前可用的操作，考虑特定系统特有的缺陷和损失，并包括可实施测量的重要作用。随着新的实验能力的出现，它也可以很容易地更新，甚至可以用来指导哪些新能力在未来会产生最大的影响。我们已经建立了这个过程的初始玩具模型（见图 1），其中已经表明，我们可以找到新的量子态，与常用的态相比，它们在测量方案的精度方面取得了相当大的进步。这是非常令人兴奋的，其他团体现在开始在不同的背景下研究进化算法[1]。该项目将从设置通用算法开始。一旦投入使用，我们将开始将其应用于磁场传感和安全通信背景下钻石中氮空位 (NV) 中心的研究 [2]。我们将与实验合作者密切合作，算法的限制将取决于实验室可以实现的目标。然后，我们将在冷原子或量子点等一系列系统中寻求更广泛的应用。