Hybrid quantum nanophotonics and optomechanics

纳米科学最令人兴奋的发展之一是研究人员研究其行为本质上是量子的物理系统的能力迅速提高。例如，在其他完美晶体中的纳米级缺陷被观察到表现得像单个原子，具有可以存储信息的量子态。同样令人印象深刻的是对纳米机械物体的研究，其机械行为偏离了经典物理定律，揭示了位置和动量的量子力学不确定性。这两个例子都使用光来观察量子效应，并且由于纳米光子器件的发展进步，这些系统的许多研究直到最近才在技术上成为可能，这些纳米光子器件增强了光与量子世界之间的相互作用。 我们小组的成员在纳米和量子物理学的最前沿开发纳米光子器件，并使用这些器件来增强控制和观察纳米级系统的量子特性所必需的光-物质相互作用。这项研究推进了我们对尺寸小于光波长的结构的光学特性的理解，以及我们从各种材料中创建这些结构的能力。它还揭示了纳米尺度和量子系统以前未观察到的特征，在许多情况下，这些特征可用于实现新的信息处理和传感技术。 这个提案描述了我的团队的愿景，即创造纳米光子设备来连接量子系统，否则它们不会相互交谈。应对这一挑战将为构建量子信息处理技术和研究量子系统的基本特性创造新的工具。拟议的研究计划建立在我的团队最近演示的金刚石设备的基础上，该设备允许光耦合到机械共振和金刚石缺陷，这些缺陷表现得像人造原子。具体目标如下。我试图回答的一个问题是，机械共振的光学控制是否可以用来以新的方式控制金刚石缺陷的量子态。我还试图利用量子缺陷从系统中去除机械能，使其冷却到运动的量子基态。与这些问题密切相关，我建议创建用于生成和存储量子信息处理架构所需的光量子态的设备。此外，我的团队已经创造了对纳米结构磁矩波动具有创纪录灵敏度的设备。我建议进一步开发这些设备，用于检测高频波动，并探测有希望用于未来量子技术的新型材料的特性。

One of the most exciting developments in nanoscience has been the rapidly advancing ability of researchers to study physical systems whose behaviour is quantum in nature. For example, nanoscale defects in otherwise perfect crystals have been observed to behave like single atoms, with quantum states that can store information. Equally impressive are studies of nanomechanical objects, whose mechanical behaviour deviates from the laws of classical physics, revealing quantum mechanical uncertainty in position and momentum. Both of these examples use light to observe the quantum effects, and many studies of these systems have only recently become technically possible thanks to advances in development of nanophotonic devices that enhance the interaction between light and the quantum world. Members of my group develop nanophotonic devices at the forefront of nano and quantum physics, and use these devices to enhance light-matter interactions necessary to control and observe the quantum properties of nanoscale systems. This research advances our understanding of the optical properties of structures with dimensions smaller than the wavelength of light, as well as our ability to create these structures from a wide range of materials. It also reveals previously unobserved features of nanoscale and quantum systems that in many cases can be used to implement new information processing and sensing technologies. This proposal describes my group's vision for creating nanophotonic devices to connect quantum systems that otherwise don't talk to each other. Addressing this challenge will create new tools for building quantum information processing technology and for studying fundamental properties of quantum systems. The proposed research program builds on my group's recent demonstration of diamond devices that allow light to be coupled to both mechanical resonances and to diamond defects that behave like artificial atoms. Specific goals are as follows. A question that I am trying to answer is whether optical control of mechanical resonances can be used to control the quantum state of diamond defects in new ways. I am also trying to use quantum defects to remove mechanical energy from the system, allowing it to be cooled to its motional quantum ground state. In close alignment with these questions, I am proposing to create devices for generating and storing quantum states of light needed by quantum information processing architectures. Additionally, my group has created devices with record sensitivity to fluctuations in the magnetic moment of nanostructures. I am proposing to further develop these devices for detecting high frequency fluctuations, and to probe properties of new classes of materials that are promising for future quantum technologies.