Cold Atom Quantum Simulator: Disorder

该项目旨在通过实现Feynman关于量子系统的量子模拟的愿景，提供量子信息处理的垫脚石，该愿景使用根据定制的哈密顿量进化的良好控制和模型量子系统。在光学晶格中使用冷原子系统，已经证明了它们在显示典型凝聚态量子效应方面的能力，比如莫特绝缘体，这种逐步方法比量子计算中的典型努力要保守得多。特别是，它很可能非常自然地提供量子计算机目前可预见的主要应用之一：通用量子模拟器。在这方面，这个项目有望推动我们对纠缠产生或量子态分析所涉及的问题的基本理解，从而为这一领域的进一步研究提供坚实的基础。这个项目的关键新特征是试图通过实现量子态操纵和量子态分析的单点分辨，首次实现对多体量子系统的完全控制。无序现象将作为完全受控晶格哈密顿的测试案例，并将允许解决量子传输中的非平凡和技术相关问题，如金属到绝缘体的转变或磁指纹。该项目与米德兰兹超级冷原子研究中心的任务非常一致，该中心是EPSRC的一项科学和创新倡议，旨在促进冷原子和凝聚态物理之间的联系。因此，它将与现有的理论小组创造巨大的互惠互利，并促进英国与其他大学的小组建立冷原子网络。欧洲领先的冷原子研究科学家之一Massimo Inguscio作为访问研究员来到英国，这一点得到了强调。作为伯明翰、华威、牛津和兰开斯特量子技术伙伴关系(QTP)的一部分，与QinetiQ的讨论已经确定了一些与冷原子研究相关的潜在副产品应用，我们正在积极寻求开发这些应用的方法，以实现未来的商业化和互惠互利。其中包括基于冷原子晶格系统和相关技术的传感器，特别是用于未来便携式冷原子系统的集成光学和激光。

This project aims at providing a stepping stone in quantum information processing by the realization of Feynman's vision of quantum simulation of a quantum system using a well controlled and model quantum system evolving according to a tailored Hamiltonian. Using cold atom systems in optical lattices, which already have proven their power in showing typical condensed matter quantum effects like the Mott insulator, this stepwise approach is much more conservative than typical efforts in quantum computation. In particular it is likely to quite naturally deliver one of the main currently foreseen applications of a quantum computer: a general quantum simulator. In this respect this project promises to drive our fundamental understanding of the involved issues of entanglement generation or quantum state analysis and consequently to provide a solid basis for further steps in this area.The key new feature of this project is the attempt to achieve for the first time full control over a many-body quantum system by implementing single site resolution for quantum state manipulation as well as quantum state analysis. Disorder phenomena shall serve as the test case for completely controlled lattice Hamiltonians and will allow tackling non-trivial and technologically relevant problems in quantum transport such as metal to insulator transitions or magneto-fingerprints .The project is well aligned with the mission of the Midlands Ultracold Atom Research Centre, an EPSRC Science and Innovation initiative established to foster the link between cold atom and condensed matter physics. It will thus create great mutual benefits with the existing theory groups and foster UK cold atom networking with groups at other universities. This is underlined by winning Massimo Inguscio, one of Europe's leading scientists in cold atom research, to come to the UK as a visiting researcher.Discussions with QinetiQ, as part of a Quantum Technology Partnership (QTP) involving Birmingham, Warwick, Oxford and Lancaster, have identified a number of potential spin-off applications related to cold atom research and we are actively pursuing ways of developing these for future commercialization and mutual benefit. These include sensors based on cold-atom lattice systems and related technology, particularly integrated optics and lasers for future portable cold-atom systems.