Quantum spin-optomechanics

量子自旋光力学

• 批准号: RGPIN-2022-03551
• 负责人: Barclay, Paul
• 金额: $ 6.92万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=762926
• 关键词: Quantum; spin; optomechanics

Quantum technologies promise to enhance our ability to communicate securely, analyse complex problems, and realise powerful sensors for probing and monitoring our world. They achieve this by harnessing properties of the quantum systems-electrons, photons, sound waves-that make up the signals that stream into our homes and computers. Advances in quantum devices-microchips patterned with quantum optical or electronic circuits-are making execution of delicate operations on these quantum systems increasingly accessible, leading to widely publicised breakthroughs in quantum technology by established companies like Google and IBM, and by start-ups such as Xanadu and D-Wave in Canada. Despite this excitement, there are many technical and fundamental challenges that must be overcome to move quantum technologies from proof-of-principle demonstrations to readily available resources that impact everyday life. One of these challenges is the interconnect problem: how can we interface quantum technologies created from widely differing physical systems without destroying their quantum properties, i.e. changing their quantum state? This challenge prevents, for example, today's most powerful quantum computers from being connected to microscopic quantum memories or to optical networks that could form the backbone of a "quantum internet". Fortunately, innovations in quantum devices are emerging to address these challenges. This proposal describes how the world leading nanofabrication capabilities of Barclay and his group will be used to create quantum devices that connect physical systems that are otherwise incompatible with each other. These devices are centered around the lab's pioneering approach to fabricating quantum devices from diamond, a material that is commercially available in chip form and whose imperfections-impurities-host electrons whose quantum states are relatively impervious to the noisy outside world. These quantum states, which are related to the different spin that electrons can possess, form the basis for atomic sized qubits and are of intense interest to quantum technology researchers.  Building on a recent breakthrough in diamond quantum device development, this proposal will create interfaces between diamond spin qubits and quantum communication and computing hardware. These quantum interfaces will harness the ability of vibrations of mechanical resonators to couple to many different types of quantum systems: optical photons, superconducting quantum circuits, and spin qubits. Their underlying technology will also lead to architectures for connecting spin qubits to each other, and to powerful quantum sensing platforms for probing nanoscale materials. This project builds on recent investments in state-of-the-art research infrastructure (major CFI Innovation Fund awards in 2017 and 2021) and will position Canada as a leader within a highly competitive and rapidly growing area of quantum research.

量子技术有望增强我们的安全交流，分析复杂问题并实现强大的传感器来探索和监视我们的世界的能力。他们通过利用量子系统电子，照片，声波的特性来实现这一目标 - 构成流入我们的房屋和计算机的信号。用量子光学电路或电子电路模式的量子设备微芯片的进步 - 使这些量子系统对这些量子系统进行了精致的操作，从而越来越易于​​使用，从而通过诸如Google和IBM（例如Google和IBM）以及诸如Xanadu和Xanadu和Canada的D-Wave等初创公司在量子技术中广泛宣传的量子突破。尽管这种兴奋，但仍有许多技术和根本挑战必须克服，以将量子技术从原则证明转移到影响每天生活的容易获得的资源。这些挑战之一是互连问题：我们如何通过广泛区分物理系统而不破坏其量子性能，即更改其量子状态而创建的量子技术？例如，这一挑战阻止了当今最强大的量子计算机连接到微观量子记忆，或者与可能形成“量子互联网”骨干的光网络连接。幸运的是，量子设备的创新正在出现，以应对这些挑战。提案描述了巴克莱及其小组的世界领先纳米制作能力如何创建连接物理系统的量子设备，而物理系统原本是不相容的。这些设备以实验室的开创性方法为中心，以制造钻石的量子设备，钻石是一种以芯片形式商业可用的材料，其缺陷 - 障碍 - 宿主电子设备的量子状态相对不受世界以外的噪音的影响。这些量子状态与电子产品可能潜在的不同旋转相关的量子状态构成了原子尺寸数量的基础，并且对量子技术研究人员非常感兴趣。在最新的钻石量子设备开发中的突破性基础上，该提案将在钻石旋转量与量子通信和计算硬件之间建立界面。这些量子接口将利用机械谐振器将振动与许多不同类型的量子系统搭配的能力：光学照片，超导量子电路和旋转量。他们的基础技术还将导致将旋转量相互连接的体系结构，以及强大的量子传感平台来探测纳米级材料。该项目以最新的最先进研究基础设施（2017年和2021年的CFI创新基金奖）为基础，并将将加拿大作为领导者在量子研究的高度竞争和快速增长的领域中。